Switching power supply module packaging heat dissipation shell

The utility model relates to a switch power supply module packaging heat dissipation housing, which comprises a packaging housing made of aluminum alloy, a mounting cavity for mounting a switch power supply module is formed in the packaging housing, and heat dissipation fin groups are arranged on the peripheral side surfaces of the packaging housing; one end of the packaging shell is provided with a sealing cover for sealing the mounting cavity, the other end of the packaging shell is provided with an air chamber and a turbofan for feeding air into the air chamber, a concentric-square-shaped air pipe is wound on the one or more radiating fin groups, the concentric-square-shaped air pipe is communicated with the air chamber and supplies air to the air chamber, and a plurality of air outlet holes are formed in the outer surface of the concentric-square-shaped air pipe; the turbofan is adopted to pressurize the air chamber, so that air pressure is generated in the concentric-square-shaped air pipe, the air is ex