Novel disc dryer

The utility model provides a novel disc dryer which comprises a rotating main shaft, a drying disc and a rake rod shaft, the rotating main shaft is vertically arranged in the center of the drying disc, and the first end of the rake rod shaft extends towards the center of the inner side of the drying disc and is connected to the rotating main shaft; a plurality of rake blade assemblies are arranged on the rake rod shaft, each rake blade assembly comprises a fixing frame, a connecting piece and a rake blade, an inner side limiting structure and an outer side limiting structure are arranged on the rake rod shaft, and limiting rods are arranged on the outer side limiting structure and the fixing frames; when the limiting rod is arranged on the outer side limiting structure, the limiting rod is located on the overturning path of the fixing frame adjacent to the outer side limiting structure, and the overturning height of the adjacent fixing frame is limited. When the limiting rod is arranged on one fixing frame, t