Energy-saving high-pressure air blower

The utility model discloses an energy-saving type high-pressure air blower. The device comprises an air blower, the air blower comprises a supporting frame, a driving motor, a support and a fan assembly are arranged on the support frame; the draught fan assembly comprises a machine shell and an impeller, an air inlet and an air outlet are formed in the machine shell, the impeller comprises a wheeldisc, the wheel disc is conical, a shaft disc and blades are installed on the wheel disc, an alpha structure is arranged between the blades and the shaft disc, pressure generated by the impeller on the high-pressure air blower during high-speed rotation can be effectively reduced, and the energy efficiency conversion rate of the high-pressure air blower is increased. The first reinforcing plate and the second reinforcing plate are provided with the second bevel edges, pressure generated by the impeller on the high-pressure air blower during high-speed rotation can be effectively reduced, andthe energy efficiency conv