On-board fine spray/foam fire extinguishing device

The utility model relates to a fine water-spray foam fire extinguishing device which belongs to the art of fire protection equipment. The model comprises a liquid storage device, a drive device, a fine water-spray foam gunjet and a load carrying device. An air outlet of a drive air storage tank is connected respectively with air inlets of bottle valves of a water storage tank and a foam storage tank (or a foam mixture storage tank) through two drive pipelines. Liquid outlets of bottle valves of the water storage tank and the foam storage tank (or the foam mixture storage tank) communicate with a ratio mixer and a flexible tube connection gunjet body. The water storage device, the drive device and the fine water-spray foam gunjet are all arranged on the carrying device. The utility model, with a concise structure, can be installed on the conveyances such as a go-cart and is used for putting out the early fire or the small-sized and middle-sized A, B, C type fire and the electric equipment fire; thereby preventing the spreading of fires.