Blast furnace cooling wall sleeve gas plugging device

The utility model discloses a coal gas plugging device for a blast furnace cooling wall sleeve. The device comprises a blast furnace, a cooling water pipe extending into the blast furnace and a ripplecompensator connected with the blast furnace and the cooling water pipe, the cooling water pipe penetrates through the blast furnace wall of the blast furnace; the ripple compensator is sleeved on the cooling water pipe; one end of the ripple compensator is fixed on the wall of the blast furnace; the sealing part is used for sealing the joint of the cooling water pipe and the furnace wall of theblast furnace, the cooling water pipe is sleeved with the sealing part, one end of the sealing part is fixed to the cooling water pipe through the fixing part, and the other end of the sealing part isfixed to the corrugated compensator protection cover through the fixing part and used for forming annular sealing between the sealing part and the cooling water pipe; according to the blast furnace cooling wall sleeve gas plug