Steel fireproof door capable of controlling expansion of sealing element

The utility model discloses a steel fireproof door capable of controlling expansion of a sealing element, relates to the technical field of steel fireproof doors, and aims to solve the problems that an existing steel fireproof door capable of controlling expansion of the sealing element is single in function, does not have good sealing performance, is high in surface temperature, does not have a heat insulation effect, and is inconvenient for firefighters to put out a fire. In order to solve the problems that in the prior art, safety of personnel is threatened, the using effect is poor, and the working efficiency is low, according to the scheme, the fireproof door comprises a fireproof door frame, a groove is formed in the fireproof door frame, a plurality of fireproof hinges are fixedly installed on the inner walls of the two sides of the groove, and the multiple corresponding fireproof hinges are hinged to the same door leaf. The fireproof door is reasonable in structural design and good in sealing performa