Explosion-proof metering cabinet

The invention discloses an explosion-proof metering cabinet, and belongs to the technical field of electrical equipment, the explosion-proof metering cabinet comprises a pressure release valve group, an explosion-proof membrane and a door closing mechanism, the pressure release valve group comprises a first pressure release valve, the first pressure release valve is arranged on a first side plate, and the explosion-proof membrane is arranged on the first side plate. The door closing mechanism comprises an expansion piece and a gyrator which are hinged to each other, the expansion piece is arranged on a second side plate hinged to a first cabinet door, and the gyrator is arranged on the first cabinet door, so that the first cabinet door always has an automatic closing trend. A three-level buffering explosion-proof mechanism is formed through the first pressure release valve, the explosion-proof membrane and the door closing mechanism, the safety level of the explosion-proof metering cabinet is improved, the ex