Hot air baking oven with improved air supply structure

The hot air baking oven with the improved air supply structure comprises a pot body and a pot cover located on the pot body, an inner pot with a cooking space is arranged in the pot body, and a heating element is arranged on the pot cover and used for providing heating heat energy for the cooking space of the inner pot; the pot cover comprises an inner cover body and further comprises an air duct bottom plate, the air duct bottom plate is arranged below the inner cover body, the top wall face of the inner side of the inner cover body and the top wall face of the outer side of the air duct bottom plate are arranged in parallel and form a fan blade rotating cavity, and the vertical wall face of the outer side of the air duct bottom plate is arranged on the inner side of the inner wall face of the tail end of the inner cover body in parallel. An annular air outlet channel which is communicated with the fan blade rotating cavity and can discharge air downwards is formed between the vertical wall surface of the ou