Air duct with novel heat dissipation structure

The utility model relates to the technical field of electrical equipment, in particular to an air duct with a novel heat dissipation structure. The high-speed air duct comprises an air outlet duct and a handle, and an air duct allowing high-speed air to flow, a high-speed fan, a main control board and a power device used for driving the high-speed fan are arranged in the high-speed air duct. The heating wire is fixed at the downstream of the air duct of the air outlet cylinder, a dustproof net is arranged at the upstream of the air duct of the high-speed fan, and a key is arranged on the side wall of the handle; the power device is arranged on the main control board and located on a high-speed air flowing path in the air channel, so that heat generated by operation of the power device is taken away by high-speed air flow in the air channel. According to the utility model, the power device is fixed on the main control board and placed in the air duct, thereby facilitating heat dissipation of the power device a