High-power blast furnace energy recovery combined unit

The utility model provides a high-power blast furnace energy recovery combined unit, which aims at meeting the air volume requirement, enabling the unit to run stably and efficiently and reducing thecomprehensive cost. The utility model discloses a high-power blast furnace energy recovery combined unit. The device comprises a motor, a blast furnace blower, a clutch and a blast furnace gas turbinewhich are coaxially connected in sequence, wherein the blast furnace blower is a double-output-shaft type axial flow compressor, the rotating speed of the blast furnace blower is 3000rpm, and the airvolume requirement of 7000Nm < 3 >/min-13000Nm < 3 >/min and the outlet pressure requirement of 6.0 bar-8. 0bar are met through the configuration of the height of a flow channel and the stage numberof an impeller; a two-pole synchronous motor is adopted as the motor, and the power is greater than or equal to 50MW; the rotating speed of the blast furnace gas turbine and the rotating speed of themotor are both 3000 rpm; one