Novel dustproof showcase

The utility model provides a novel dustproof showcase, which relates to the technical field of dustproof showcases and comprises a box body, a fixing groove is arranged at the top of the box body close to the edge of the rear surface, an upper winding drum is rotatably connected between the inner walls of the two sides of the fixing groove, and a lower winding drum is rotatably connected between the inner walls of the two sides of the box body close to the inner bottom surface. A fixing groove is formed in the rear surface of the box body, a filter plate is fixedly connected to the front inner surface wall of the fixing groove, the bottom of the filter plate is attached to the inner bottom face of the box body, a filter paper groove is formed in the top of the filter plate and penetrates through the bottom of the filter plate, and a plurality of ventilation holes are formed in the rear surface of the filter plate at equal intervals. The filter plate is additionally arranged and matched with the ventilation de