Police are hunting for a dangerous mugger who knocked down two elderly women in Harlem, cops said.

The heartless thug came up behind his first victim, an 80-year-old woman, on East 106th Street near First Avenue at 2:10 p.m. on October 2, then knocked her down and stole her purse before fleeing.

The punk knocked his second victim, age 72, to the ground on 108th Street near Second Avenue at 1 p.m. on Thursday, grabbing her purse.

Both victims suffered minor injuries. Cops describe the suspect as a black male, about 5’9”, in his early 20s.