The utility model discloses a silencing device of a high-pressure air blower. Sound insulation frame, High-pressure blower body, an air blower base and a temperature sensing controller, Acoustic wallshock absorbers are installed on the two sides of the top in the sound insulation frame through high-strength bolts. an illuminating lamp is mounted between the acoustic wall shock absorbers through aconnecting rod; a high-pressure air blower body is arranged at the bottom of the acoustic wall shock absorber; a damping material gasket is mounted on the periphery of the high-pressure air blower body through fixing glue; A vortex air pump silencer is installed at one end of the high-pressure air blower body through bolts, an air blower base is installed at the bottom of the high-pressure air blower body through high-strength screws, plastic protrusions are installed on the two sides in the sound insulation frame through installation bases, and a sound insulation plate is installed at one end of the sound insulation frame through a connecting screw. The silencing device of the high-pressure air blower is powerful in function, scientific in design, convenient to operate, good in stability, high in reliability and suitable for wide popularization.