Drying machine

The present invention relates to a drying machine comprising: a casing having an inlet for inputting an object to be processed formed on a front side thereof and an outlet for discharging the object to be processed which is heated and dried formed on a rear side thereof; a plurality of rotation shafts rotatably formed in the casing; and a plurality of disks protruding radially outward from an outer circumferential surface of the rotary shaft and arranged at a plurality of stages at intervals in an axial direction of the rotary shaft, wherein the neighboring rotation shafts are rotated in the same direction, and the plurality of disks have a wedge shape in which a width becomes narrower toward the front in a rotational direction when viewed from an outside in a radial direction.