Multifunctional industrial fan

The utility model discloses a multifunctional industrial fan which comprises a fixed supporting base, a supporting ejector rod is fixedly connected to the middle of the upper end of the fixed supporting base, an insertion supporting block is connected to the upper end of the supporting ejector rod in an inserted mode, and a height lifting device is connected to the inner wall of the insertion supporting block in an inserted mode. A fixed supporting rod is fixedly connected to the middle of the upper end of the height lifting device, a fan outer frame is fixedly connected to the upper end of the fixed supporting rod, and cooling fan blades are connected to the inner wall of the fan outer frame by mounting a rotating motor spline. When the fan outer frame is fixedly installed on the height lifting device, the electric push rod is started to enable the adjusting sliding block to vertically slide on the adjusting supporting rod in a limiting mode, meanwhile, the stable supporting rod drives the fixed supporting r