Fixing structure for box body of range hood

The utility model provides a fixing structure for a box body of a range hood, which belongs to the technical field of range hoods and comprises a main body which comprises a bottom plate, a front plate vertically extending upwards along the front edge of the bottom plate, a rear plate vertically extending upwards along the rear edge of the bottom plate, and side retaining walls vertically extending upwards along the left edge and the right edge of the bottom plate respectively, the left edge and the right edge of the rear plate vertically extend forwards to form rear blocking walls respectively, a hanging hole is dug in each rear blocking wall, and the bottom plate, the front plate, the rear plate, the side blocking walls and the rear blocking walls are integrally arranged. The two side plates are detachably installed on the left side and the right side of the body respectively, the front edges, the lower edges and the rear edges of the side plates coincide with the front plate, the bottom plate and the rear