Built-in pressure-storage fire extinguisher

The utility model discloses a built-in pressure-storage fire extinguisher, comprising a fire extinguisher cylinder body, wherein a spraying valve body is arranged on the fire extinguisher cylinder body; a spraying hose and a siphon pipe are arranged on the spraying valve body; a starting pressure handle is hinged on the spraying valve body; the siphon pipe is arranged in the cylinder chamber of the fire extinguisher cylinder body; the cylinder chamber of the fire extinguisher cylinder body is also internally provided with a pressure-storage gas bottle that is fixedly arranged on the spraying valve body; a valve stem is movably arranged on the spraying valve body; the lower end of the valve stem is provided with a pricker by a connecting rod; a gas storage bottle sealing sheet is arranged between the front end of the pricker and the pressure-storage gas bottle mouth; and the upper end of the valve stem corresponds to the starting pressure handle. The built-in pressure-storage fire extinguisher has the advantag