Air path self-circulation type heat dissipation air blower

The invention relates to the technical field of air blowers, and provides an air path self-circulation type heat dissipation air blower, the matched air path self-circulation type heat dissipation air blower is provided with a self-circulation type air path, the air circulation in the air blower is improved to a certain extent, the heat dissipation effect is achieved, the air path works synchronously along with the operation of the air blower, and the heat dissipation efficiency is improved. The invention relates to an air blower, which has the advantages that the air blower can stop synchronously along with the stop of the air blower, the linkage is better, the air flowability in an air path is better, the use is more flexible, the adjustment is more convenient, and the air blower comprises a left wall plate, a right wall plate, a gear box, an oil tank, a third-stage casing, a second-stage casing, a first-stage casing, a driving shaft, a driven shaft, an air inlet pipe and an air exhaust pipe, an air inlet p