Mayor Eric Adams made an unannounced visit to the Roosevelt Hotel in Midtown Manhattan Wednesday night, where he was cursed out by fed-up New Yorkers begging him to “do something” about the city’s spiraling migrant crisis.

Hizzoner arrived at the historic hotel-turned-makeshift processing center, which has become the epicenter of the city’s alarming influx, just before 10 p.m.

But he wasn’t just met by the dozens of slumbering asylum seekers sleeping shoulder-to-shoulder on the sidewalk.

A crowd of frustrated residents took the opportunity to confront the mayor, with video shared on social media showing an angry group shouting obscenities and urging him to take action.

“Do something Eric Adams,” one person shouts in the clip.

“How many family members have to wait for you to f–king do something?”

A source who was with Adams described it as “wild.”

“It was wild, there were protestors, people were shouting and screaming,” the source told The Post.

“He [Adams] was a little upset, he felt they needed a little more law and order over there.”

Adams left the Roosevelt around midnight.

Not long after he departed, migrants who had been camped outside the hotel began being swiftly moved inside to be processed and carted away on buses, migrants at the intake center told The Post.

“Around midnight, the staff began to work more actively,” Russian political asylum seeker Natalia Subbotin told The Post.

“At night they brought more people out of the queue from the street. They were taken to buses pretty quickly,” she said, adding that she did not know where they were being taken.

The Midtown location is being used as an intake center for newly-arrived migrants, where they are supposed to go to get processed and get a bed at a city shelter.

Migrants typically are held at the hotel for about 24 hours, though their stay could be anywhere from 2 hours to 2 days, according to a security guard outside.

However, the hotel reached capacity over the weekend, meaning asylum seekers have been forced this week to camp on the street outside.

Subbotin and her husband Maksim, both 26, were placed in waiting rooms inside the former hotel overnight. They had been camped outside in the line since Tuesday morning.

Another migrant, Savi Khalil, 31, from Mauritania, had been waiting in the cramped line with little rest for nearly 48 hours when he was also brought inside Wednesday night to be processed.

The Post witnessed about 19 asylum seekers board a bus from the Roosevelt Hotel at 8:15 a.m. Thursday, while a second bus carrying about 20 others — including Subbotin — departed several hours later at 11:30 a.m.

By noon Thursday, cops had dismantled the barricades erected to separate the camping migrants from pedestrians along East 45th and Vanderbilt Avenue.

City Hall would not comment on where the migrants were being taken, however, a spokesperson for Mayor Adams thanked the “faith-based organizations” who have helped provide shelter.

Meanwhile, a source said some migrants were transported to an undisclosed shelter in Sunset Park.

The city has opened 194 sites, including 13 large-scale humanitarian relief centers, to provide shelter for the more than 95,000 asylum seekers who have poured into the Big Apple since last spring.