Special injection moulding machine for environment-friendly fireworks barrel

The invention provides a special injection moulding machine for an environment-friendly fireworks barrel. The injection moulding machine adopts a decompressing, gas-exhausting and plastifying structural design and a filter spray nozzle structural design, extrudes and plastifies recycled regenerated materials through a screw, and discharges and decompresses to generate water vapor and volatile gas;extrusion force, on materials, is increased through a screw root part, so that generated water vapor and generated volatile gas are discharged from the screw root part. The length of a plastifying device is equal to that of a common injection moulding machine, so that a high-speed high-pressure injection process can be conveniently realized. An adopted decompressing gas-exhausting device can effectively remove water in the raw materials, cancels a material drying process, saves electric power and cost investment of a drying machine; a filter spray nozzle can block impurities such as scrap iron and gravels from enteri