The utility model discloses a special-purpose device for changing a jetting-blowing fluidization plate. The special-purpose device comprises a bracket, wherein a lifting device is arranged on the bracket; the lifting device comprises a hydraulic cylinder, a chain and a lifting plate; the hydraulic cylinder is fixed at one side of the bracket; the lifting plate is arranged at the other side of the bracket; a pushing rod of the hydraulic cylinder is fixedly connected with one end of the chain; the other end of the chain is connected with the lifting plate by getting across a chain wheel at the top end of the bracket; a supporting bottom plate is arranged at the lower end of the bracket; a travelling wheel and a universal wheel are arranged on the supporting bottom plate. The special-purpose device for changing the jetting-blowing fluidization plate disclosed by the utility model is convenient to operate, replaces human labor by a mechanical device, shortens maintaining and changing time of the fluidization plate, reduces coal stopping time for a blast furnace and ensures stable production of the blast furnace; meanwhile, maintaining labor power is reduced, maintaining labor cost is lowered, and economic benefits are improved.