Lifting device for narrow space

The utility model relates to a lifting device for a narrow space. The lifting device comprises a mounting frame, a first fixed pulley, a second fixed pulley, a movable pulley, a lifting rope, a lifting hook and a driving mechanism, the installation frame is used for being installed on a building frame body, the first end of the installation frame extends out of the building frame body, the first fixed pulley and the second fixed pulley are connected to the first end of the installation frame in parallel, and the first end of the lifting rope is sequentially wound around the first fixed pulley, the movable pulley and the second fixed pulley. The movable pulley is located between the first fixed pulley and the second fixed pulley, the second end of the lifting rope is connected with the driving end of the driving mechanism, and the lifting hook is connected to the movable pulley. The hoisting device is small in occupied space, can be suitable for being used in a narrow space, can conveniently and quickly hoist