Dendrobium nobile freeze-drying device

The utility model relates to the technical field of dendrobium nobile decoction piece preparation, and discloses a dendrobium nobile freeze-drying device which comprises a tank body and a feeding hopper, a circulating cavity is formed in the tank body, a heat preservation layer is arranged in the circulating cavity, a supporting frame is arranged at the bottom end of the tank body, lifting assemblies are arranged on the two sides of the supporting frame, and the feeding hopper is arranged in the tank body. Rollers are arranged at the bottom end of the lifting assembly, and a cover plate is arranged at the top end of the feeding hopper. According to the dendrobium nobile freeze-drying device, the cover plate and the opening and closing assembly are arranged, the cover plate can enable the feeding hopper to be in a closed state, external sundries can be prevented from falling into the device to pollute dendrobium nobile decoction pieces, and therefore the quality of the dendrobium nobile decoction pieces is not