Fireproof glass door with sound insulation function

The fireproof glass door with the sound insulation function comprises a glass door body, a door frame and a sound insulation flame retardant mechanism, the door frame comprises a top plate, a hinged side plate and an opening and closing side plate, the hinged side plate and the opening and closing side plate are symmetrically arranged on the bottom face of the top plate, a groove is formed in the side wall of the opening and closing side plate, and the sound insulation flame retardant mechanism is arranged in the groove. The door comprises a flame-retardant air bag, a spring, a metal plate and an electromagnet, when the glass door body is closed, a hemisphere arranged on the glass door body can make contact with a normally-closed button at the bottom of a top plate, the normally-closed button is turned into an open state, electric energy supply is cut off, and therefore the electromagnet loses magnetic attraction to the metal plate; the metal plate pushes the flame-retardant air bag to make contact with the s