Fan

The invention discloses a fan which comprises an inner shell, an outer shell and a fan motor. An air inlet cavity and air ducts communicated with the air inlet cavity are arranged in the inner shell. The air inlet cavity is provided with air inlets. The outer shell is disposed on the outer periphery of the inner shell and connected with the inner shell. The outer shell is provided with an air outlet cavity. The air outlet cavity is connected with the air ducts and provided with air outlets. The fan motor is disposed in the air inlet cavity and used for blowing air entering the air inlet cavity into the air ducts and allowing the air to be blown out from the air outlet cavity. The fan has the advantages that a centrifugal wind rotor is disposed in the air inlet cavity, blades cannot be seed from the outside of the fan, appearance attractiveness is guaranteed, dust can be prevented, risks, caused by high-speed rotation, of traditional fans are avoided, the air entering the air inlet cavity is driven by the centrifugal wind rotor in a high-speed manner and blown out from the air outlets of the air outlet cavity, high air flow speed is achieved, and noises are reduced greatly.