Air-circulation temperature control device used for iron-making

The invention relates to a temperature control device, in particular to an air-circulation temperature control device used for iron-making. The technical problem is to provide the air-circulation temperature control device, capable of easily controlling temperature difference of inner and outer walls of a furnace body, automatically driving an air outlet hood to vertically move and swing, and facilitating fixing of the rotary furnace body, used for iron-making. The air-circulation temperature control device used for iron-making comprises supporting legs, rotating bases, the furnace body, a transmission mechanism, an air suction mechanism and an adjusting mechanism, wherein the supporting legs are symmetrically arranged on the ground; the rotating bases are rotatably connected with the inner sides of the upper portions of both the supporting legs; the furnace body is connected between the rotating bases; the transmission mechanism is arranged at the upper portion of the furnace body; the air suction mechanism