Multifunctional fire extinguishing rod

A piston is arranged in a barrel in a sliding mode, a fire extinguishing agent containing cavity is formed between the piston and a front sealing cover, a high-pressure gas cylinder containing cavity is formed between the piston and a rear sealing cover, a high-pressure gas cylinder is installed in the high-pressure gas cylinder containing cavity, a nozzle used for spraying out a fire extinguishing agent is arranged on the front sealing cover, and the high-pressure gas cylinder is installed on a gas cylinder seat. The rear sealing cover is provided with a gland, a bulb is embedded in the gland, the firing pin is locked on the gland at the tail end through threads, the tip end of the firing pin is close to a bottle opening of the high-pressure gas bottle, the rear sealing cover is provided with a battery containing cavity and a power switch beside the high-pressure gas bottle, and the battery is located in the battery containing cavity. The fire extinguisher is small in size, simple in structure, flexible to o