Drying device for clothes treatment equipment and clothes treatment equipment

The invention discloses a drying device for clothes treatment equipment and the clothes treatment equipment. The drying device comprises a shell and a filter screen assembly. A ventilation channel is arranged in the shell; a drawing opening and an air inlet are formed in the shell; a slide way extending into the ventilation channel from the drawing opening is arranged in the ventilation channel; the filter screen assembly is arranged in the shell and is arranged on the slide way in a sliding manner through the drawing opening; a sliding groove and a protruding rail are alternatively arranged between the bottom wall of the sliding way and the opposite side of the filter screen assembly, the protruding rail is arranged in the sliding groove in a sliding mode in the extending direction of the sliding way, and one inner side wall of the sliding groove abuts against one side of the protruding rail. The sliding groove and the protruding rail in the extending direction of the sliding way are selectively arranged on