Assembly structure of hot air duct and cooking device

The embodiment of the utility model provides an assembly structure of a hot air duct, which is used for a cooking device and comprises a cavity upper plate and a hot air cover. The cavity upper plate forms the top wall of a cooking cavity of the cooking device, the hot air cover is arranged on the side, facing the cooking cavity, of the cavity upper plate, and a hot air channel is defined by the hot air cover and the cavity upper plate. The hot air cover comprises a cover body and an elastic locking piece, the cover body is provided with a first side and a second side, the first side of the cover body is rotatably arranged on the cavity upper plate, the elastic locking piece is arranged on the second side of the cover body, and the second side of the cover body can rotate in the direction close to the cavity upper plate. The elastic locking piece is used for making the elastic locking piece make contact with the cavity upper plate and generate elastic deformation, and in the state that the hot air cover rotat