Cyclone dryer for preparing oseltamivir phosphate intermediate

The utility model relates to the technical field of cyclone dryers, in particular to a cyclone dryer for preparing an oseltamivir phosphate intermediate, which comprises a cylinder. The drying device has the advantages that by arranging the rotary drum and forming a plurality of filtering holes in the rotary drum, when the drying device is used, materials are introduced into the rotary drum through the feeding pipe at the top of the rotary drum, a heating wire in the rotary drum is electrified, so that the temperature in the rotary drum is increased, air is introduced into the rotary drum through the air inlet pipe, and the materials in the rotary drum are dried; firstly, a first motor is started, a rotating shaft drives a rotating drum to rotate in a cylinder, the rotating drum rotates at the top of a positioning plate for supporting, meanwhile, a supporting shaft rotates on a base, then redundant water is thrown out of the rotating drum through filtering holes, and after the rotating shaft rotates for a per