Auxiliary tool for hoisting large flue in limited space

The utility model relates to an auxiliary tool for hoisting a large flue in a limited space, which relates to the technical field of large flue hoisting tools and comprises a bracket, a hoisting rail connected with the bracket and a pulley connected to the hoisting rail in a sliding manner, the support comprises two connecting plates connected to the two horizontal sides of the cross beam in the limited space through bolts and a hanging plate fixedly connected to the lower ends of the two connecting plates, the hanger rail is detachably connected to the lower end of the hanging plate, the connecting plates are provided with through holes allowing the bolts to penetrate through and be connected with the cross beam, and bolt sleeves are embedded in the cross beam; reinforcing plates are vertically and fixedly connected between the two connecting plates, the upper ends of the reinforcing plates do not exceed the upper ends of the connecting plates, and reinforcing ribs are fixedly connected between the connectin