Fin heat exchanger for constant-temperature control of converter gas

The embodiment of the invention relates to a fin heat exchanger for constant-temperature control of a converter gas. The heat exchanger comprises a double-coil S-shaped tube panel, a smoke baffling plate, supporting plates, a flue guard plate and supporting beams, wherein a fin group is arranged between two adjacent parallel straight tubes in the double-coil S-shaped tube panel, the bending area of the double-coil S-shaped tube panel is provided with the smoke baffling plate, the smoke baffling plate is connected with the flue guard plate, the supporting plates are connected with the supporting beams, each supporting beam corresponds to one supporting plate, and the supporting plates are connected between the supporting beams and the smoke baffling plate. The fin heat exchanger for the constant-temperature control of the converter gas provided by the embodiment of the invention has the advantages that the heat exchange effect is enhanced, the ash removal is easy, the abrasion is reduced, the service life of e