The invention discloses a drying device for materials. The device comprises a conveyor belt, a workbench, a first return pipe and a drying room. The inner side of the conveyor belt is provided with an shaft of rotation. The lower part of the shaft of rotation is fixedly provided with a driving device. The lower part of the workbench is provided with an air blower. The air bower is connected with an air inlet pipe through an air inlet hose. The left and right end of the drying room are provided with windbreaker clothes, and the inside of the drying room is provided with a heating coil in a connected mode. A second return pipe is arranged on the right side of the first return pipe and an air outlet pipe is arranged on the left side of the first return pipe. The outside of the drying room is a thermal insulating layer. According to the drying device for materials, two air blowers installed symmetrically are utilized to accelerate the speed of inletting air. At the same time, the air is inlet in all dimensions, and the drying is more uniform. Besides, the hot wind is recycled under the action of the return pipe to coordinate the heating plate which is distributed equidistantly. The drying device for materials has the advantages of fast drying speed, effectively preventing the loss of the internal heat through the windbreaker clothes and the thermal insulating layer, good drying effect, simple operation and being convenient to use.