Blast furnace hearth

The utility model provides a blast furnace hearth, by outer extremely interior stove outer covering, cooling wall, fritter carbon brick layer, carbon element ramming mass layer, bold carbon brick layer, the corundum brick layer of being equipped with in proper order, be equipped with a plurality of cooling pipe group spare in the cooling wall, cooling pipe group spare is the circuitous S -pipe spare that rises, cooling pipe group spare cooperatees with cooling system, cooling pipe group spare includes first coiled pipe and second coiled pipe, cooling system including respectively with first coiled pipe and a second coiled pipe matched with cooling circulation system and the 2nd cooling circulation system, the top symmetry of hearth is provided with the wind gap, the below of hearth is provided with the iron mouth, utilizes and singly supplies blast furnace hearth refrigerated cooling system, can provide the cooling water of lower temperature for the hearth, adopts S type flush type second grade water -cooled