Instant tea circulating oven

The instant tea circulating oven comprises an oven body, a heat preservation partition plate is arranged in the oven body and divides the inner space of the oven body into a drying cavity and a heating and filtering cavity, the heating and filtering cavity comprises a filtering cavity located on the upper portion of the drying cavity and a heating cavity located on one side of the drying cavity, and an air inlet mechanism is installed in the filtering cavity. The air inlet mechanism comprises a shell, a fan is installed in the shell, a first air inlet pipe and a second air inlet pipe are arranged at the air inlet end of the shell, and the first air inlet pipe is directly connected with external air. The air filtering mechanism can filter and purify air, the treated air enters the heating cavity, then is heated by the heating cavity and then enters the drying cavity, and the air flows upwards through the flowing trend of hot air and flows into the second air inlet pipe, so that circulating drying is achieved.