The creep allegedly caught on video pummeling a man twice his age in the lobby of a Brooklyn public-housing building surrendered to cops early Sunday, authorities said.

Lytee Knox Hundley turned himself in at the 79th Precinct station house in Bedford-Stuyvesant around 7:40 a.m. for the brutal beatdown of Wilfredo Arce, police said.

Hundley, 31, dropped Arce, 62, with a single punch to the floor of a building in NYCHA’s Tompkins Houses around 6:15 p.m. Friday, cops said.

As bystanders looked on — some laughing and shooting video of the cruel attack that has since gone viral on social media — Hundley repeatedly punched and kicked Arce in his head and face.

The attack left Arce hospitalized with a broken nose and eye socket.

Charges against Hundley are pending.