A boozed-up driver yesterday fatally struck an 89-year-old Queens man crossing the street just steps from his home, police said.

Demitrios Matsoukatidis, 67, was driving east on 21st Avenue near 31st Street in Astoria at 6 p.m. when he smashed into Lizardo Aladana as he was in the crosswalk, authorities said.

Aladana, who cops said was crossing against the light, was rushed to Mount Sinai Hospital Queens, where he died.

Matsoukatidis was charged with vehicular manslaughter and DWI.