Drying device for manufacturing and processing polyimide and use method of drying device

The invention discloses a drying device for manufacturing and processing polyimide and a using method of the drying device. The drying device comprises a machine shell and two front supporting legs. Through cooperative use of transmission equipment, an operation hole, a drying fan, a special-shaped pipe, a splitter plate, a water screening tank and a telescopic air cylinder, after most water drops on the surface of polyimide are screened into the bottom of an inner cavity of a machine shell, the drying fan is started to guide hot air into the splitter plate through the special-shaped pipe, and the inner wall of the splitter plate is provided with a plurality of ventilation holes; the problems that when existing polyimide particles are dried, no device for shaking the polyimide particles is used, a large number of polyimide particles are directly stacked together to be dried, the hot air only can rapidly dry the tops of polyimide piles, and the drying efficiency is high are solved. The problem that a large amo