Water-based fire extinguisher for escape and self-rescue in fire scene

The water-based fire extinguisher comprises a water-based fire extinguisher body, an emergency detection mechanism is arranged on the surface of the water-based fire extinguisher body, the detection mechanism comprises a setting frame, the setting frame is arranged on the peripheral surface of the water-based fire extinguisher body, a lamp holder is fixedly arranged on the surface of the setting frame, and the lamp holder is fixedly connected with the water-based fire extinguisher body. A threaded groove is formed in the lamp holder, and a screw base is arranged in the lamp holder in a threaded mode. When the water-based fire extinguisher is manufactured, the external lamp holder is welded to the surface of the water-based fire extinguisher, the sliding groove is formed in the top of the external lamp holder through a groove drilling tool and provided with the sealing cover plate, the sealing cover plate moves left and right on the top of the external lamp holder, and the storage battery in the external lamp