Material filling nozzle

The invention discloses a material filling nozzle which comprises a filling nozzle connecting base, a filling nozzle and an overflow pipe. A filling cavity is formed inside the filling nozzle connecting base, the lower end of the filling nozzle connecting base is connected with the filling nozzle and the overflow pipe which are communicated with the filling cavity, the filling nozzle and the overflow pipe are in threaded connection with the lower end of the filling nozzle connecting base, the filling nozzle and the overflow pipe are each provided with a sealing ring which is tightly attached to the outer side face of the lower end of the filling nozzle connecting base, a sealing groove is formed in the end face, tightly attached to the outer side face of the lower end of the filling nozzle connecting base, of each sealing ring, and the filling nozzle comprises a straight pipe at the upper end and a nozzle body at the lower end. A nozzle opening is formed in the lower end of the nozzle body, an arc-shaped buffer part which is bent upwards is arranged inside the nozzle body, and a plurality of radial through holes are formed in the arc-shaped buffer part. The material filling nozzle is simple in structure, convenient to mount and dismount, good in sealing performance, capable of reducing impact force of sprayed-out liquid, reducing liquid sputtering and preventing a packaging bag from being broken down, good in protection and safety and capable of preventing liquid overflowing caused by saturation of the packaging bag.