The invention provides a movable lifting platform for a centrifugal fan. The movable lifting platform comprises a vehicle body and worm gear screw lifting machines. The vehicle body comprises a top layer and a bottom layer, the top layer and the bottom layer are vertically connected with each other. A supporting frame used for mounting the centrifugal fan is fixed to the top layer. Lifting machine mounting supports are fixed on both of the opposite faces of the bottom layer. The worm gear screw lifting machines are mounted at the front end and the rear end of each lifting machine mounting support through respective corresponding lifting machine mounting blocks. The two lifting machine mounting support are provided with holes for the screws of the four worm gear screw lifting machines to ascend and descend. A circular supporting foot pad is arranged on the bottom of the screw of each worm gear screw lifting machine. According to the movable lifting platform for the centrifugal fan, the working stability of the centrifugal fan is improved, when the centrifugal fan works under the working conditions such as the uneven ground, operation devices have certain levelness demands, a large adjusting range can be provided through the design of four corner lifting, and adjustment on the levelness of the platform is convenient to carry out.