The invention relates to a shunt device. The shunt device comprises a tail die sleeve, a shunt cone, a regulating ring, a pressing plate, a gate die, a mandrel, a front half-shunt bracket, a back half-shunt bracket, a front small shunt cone and a back small shunt cone, wherein the tail die sleeve is provided with a feed inlet, the mandrel is arranged inside the gate die, the front half-shunt bracket and the back half-shunt bracket are connected into a whole to form a shunt bracket and fixed between the tail die sleeve and the regulating ring, the shunt cone is fixed at one side of the shunt bracket close to the tail die sleeve, the mandrel is fixed at one side of the shunt bracket close to the regulating ring, the shunt bracket is fixedly connected to the front small shunt cone and the back small shunt cone which are connected into a whole to form a small shunt cone, and the small shunt cone is located in a flow channel in the shunt device and divides the flow channel into an outer wall flow channel and an inner wall flow channel. Because the dual shunt device is utilized in the invention, materials can be combined very well after passing through the shunt bracket, the trace of a joint line of a produced pipeline product is not obvious, and the mechanical property is improved.