Cabinet type centrifugal fan

The utility model relates to the technical field of cabinet type centrifugal fans, and discloses a cabinet type centrifugal fan which comprises a machine cabinet and a fan, a placement groove is formed in the inner wall of the upper side of the machine cabinet, a brush plate is arranged in the placement groove, a hydraulic rod is connected to the brush plate, two filter plates are arranged in the machine cabinet, and the hydraulic rod is connected to the brush plate. And a pressing plate is arranged on the rear side of the filter plate. Before the filter plates are cleaned, the motor drives the rotating shaft to rotate, the static states of the two abutting blocks are exchanged, the filter plate on one side is meshed with the abutting blocks, the filter plate on the other side is separated, the hydraulic rod corresponding to the filter plate on the meshed side drives the brush plate to move downwards, and impurities such as dust remaining in the filter holes are pushed out due to abutting of the protruding bl