Lifting appliance for replacing blast furnace top distributor

The lifting appliance comprises a U-shaped lifting appliance frame, the lifting appliance frame comprises double layers of symmetrically arranged frame bodies, the tops of the frame bodies are connected through a horizontally arranged lifting table, first lifting lugs are symmetrically arranged at the top of the lifting table and used for overall lifting, the bottom of the lifting table is open, and walking wheels are symmetrically arranged in an inner cavity of the lifting table. Third lifting lugs are arranged on the lifting table on the outer sides of the walking wheels and used for traction, and second lifting lugs are symmetrically arranged on the two sides of the lifting tool frame perpendicular to the lifting table and used for lifting the distributing device. The first lifting lug, the second lifting lug and the third lifting lug work step by step and are in close fit to jointly complete hoisting and same-position translation of the distributing device in a narrow space, the distributing device is pla