Fermentation culture medium sterilization device

The utility model relates to the technical field of culture medium sterilization equipment, and discloses a fermentation culture medium sterilization device which comprises a culture dish sterilization assembly, a heat recovery assembly is arranged at the upper end of the culture dish sterilization assembly, and a culture dish placing assembly is arranged in the culture dish sterilization assembly. An equipment control assembly is arranged at the lower end of the culture dish sterilization assembly, and the heat recovery assembly comprises a heat recovery box and a water storage box. According to the utility model, through the design of the heat flow port, heat can be injected into the heat surrounding pipe to form a cyclic heating structure, the interior is heated by dry heat equipment, internal hot air enters the heat surrounding pipe through the heat flow port above, and the heat is reutilized; and cold water is put into the water storage tank for heating, and the heated water flow can be discharged throug