Self-cleaning pipeline fluid mixer

The invention discloses a self-cleaning pipeline fluid mixer which comprises a body, and a first cavity used for enabling a first fluid to flow in the radial direction of the body and a second cavity used for enabling a second fluid to flow in the axial direction of the body are formed in the body. The first cavity is located on the outer side of the second cavity, the first cavity and the second cavity are separated through an interlayer arranged on the inner wall of the body, a plurality of injection sprayers are arranged on the interlayer, nozzles of the injection sprayers face the incoming flow direction of second fluid in the second cavity, a connecting pipe communicated with the first cavity is arranged on the outer wall of the body, and a branch pipe is arranged on the connecting pipe. According to the invention, the first fluid in the first chamber and the second fluid in the second chamber are initially contacted to form convection contact, so that the disturbance of the fluids is greatly increased,