The wall mounted axial flow fan adopts a low-noise fan dedicated motor direct drive; The whole machine is made into a square shape, with a beautiful appearance and convenient installation of reserved square holes on the wall; The air outlet is equipped with self hanging louvers to prevent outdoor rainwater and natural wind from flowing back into the indoor area. It has obvious advantages such as firm installation, low vibration, low noise, and smooth operation, and is widely used for wall exhaust in industrial and mining enterprises, civil buildings, sports halls, animal husbandry, and various entertainment venues.