Medicinal material hot air circulation oven

The invention discloses a medicinal material hot air circulating oven. The medicinal material hot air circulating oven comprises an oven machine frame, an oven shell and a plurality of drying sieve trays, wherein the oven machine frame is wrapped with the oven shell, and the drying sieve trays are used for placing medicinal materials. A vertical partition plate is arranged in the oven shell, and the vertical partition plate divides the interior of the oven shell into a left drying cavity and a right drying cavity. The left drying cavity is provided with a medicinal material rising drying mechanism for driving the drying sieve trays to rise, and the right drying cavity is provided with a medicinal material falling drying mechanism for driving the drying sieve trays to fall. The oven shell is further provided with an intermediate transfer mechanism for transferring the drying sieve trays from the medicinal material rising drying mechanism to the medicinal material falling drying mechanism. The medicinal materia