Ladder for overhauling metallurgical blast furnace

The utility model discloses a ladder for overhauling a metallurgical blast furnace, which comprises a base for supporting, a fixed column fixedly connected to the edge of the upper end of the base, an overhauling platform arranged above the fixed column, and movable columns respectively connected to the left end and the right end of the base in a sliding manner, the end, away from the base, of the movable column is in threaded connection with a supporting rod, the movable column is combined with the supporting rod to be used for conducting auxiliary supporting on the base, the movable column and the base are limited through a positioning mechanism, and the connecting supports are hinged to the left side and the right side of the lower end of the overhauling platform. According to the ladder for overhauling the metallurgical blast furnace, auxiliary supporting can be conveniently conducted on the ladder, the stability of the ladder in the using process is improved, shaking and even toppling of the ladder in th