Nozzle used for purifier

A nozzle structure which is used in a decontamination plant comprises a hollow ball tuyere notch, a bellmouthing, and a tuyere notch fastening piece. The root portion of the bellmouthing is provided with an inner spherical bearing portion which is matched with the tuyere notch fastening piece to clip the ball tuyere notch, and thereby the ball tuyere notch can slide in the inner spherical bearing portion to change the direction of an exit. The utility model is characterized in that the ball tuyere notch, the bellmouthing, and the tuyere notch fastening piece all are the composite-layer structure, the inner layer is a resin layer, the outer layer is a metal coating, and the bellmouthing is fixedly connected with the tuyere notch fastening piece. The utility model utilizes the composite materials of resin and metal, thereby the nozzle is light in weight, low is cost, and meanwhile will not be influenced by static electricity.