The invention discloses a fast air-drying system for a wave wheel semi-automatic washing machine, which comprises a shell and an air-drying barrel, wherein the air-drying barrel is movably arranged inthe shell, and the outer side of the air-drying barrel is connected with the inner wall of the shell through two sets of locating blocks respectively. A fan frame is arranged at the upper end of theshell, and one end of the fan frame is connected with the shell through a rotating block. Two sets of air pipes are arranged in the shell and on the inner wall of both sides of the shell respectively.The air pipes are arranged between the air-drying barrel and the inner wall of the shell respectively, and the pipe mouths of the air pipes are arranged directly below the fan frame. The other end ofthe pipe mouths are fixedly connected with outlet pipes, and one end of the outlet pipes is perpendicular to the bottom of the air-drying barrel. In the fast air-drying system for a wave wheel semi-automatic washing machine, by setting a rotating drain plate, on one hand, the clothes can be prevented from directly covering the outlet pipe, on the other hand, the contact area between the clothes and the wind in the air-drying barrel can be increased and the air-drying speed can be accelerated.