Blast furnace cooling system

The utility model relates to a blast furnace process technical field, for prior art is big with the butt joint degree of difficulty of restoreing damaged cooling wall and being existed with bellows and the all -welded of upper and lower section cooling wall business turn over water pipe, the chronic technical problem of connecting processing, the utility model provides a blast furnace cooling system, through respectively setting up a positive tee bend reducing pipe and a positive tee bend tapered pipe on upper segment cooling wall damaging the cooling wall and the hypomere cooling wall respectively, and it is continuous to pass through the hose with positive tee bend reducing pipe in the same section cooling wall and positive tee bend tapered pipe, two positive tee bend reducing pipes in the cooling wall of different sections link to each other through the hose, and the both ends that will wait to restore the bellows in the condenser tube in the cooling wall link to each other with two positive tee bend tapered pipes respectively, thereby accomplish the restoration to damaging the cooling wall, not only the butt joint is convenient, but also the time of connecting processing has been shortened, and the labor intensity is reduced.