Cardboard paper fiber separator

The utility model discloses a cardboard paper fiber separator, which belongs to the technical field of paper raw material processing, and comprises a base, the upper surface of the base is fixedly connected with a protective cylinder for matched sealing, the upper surface of the base is rotatably provided with a transmission shaft in a penetrating manner through a bearing, and the surface of the transmission shaft is provided with an inner rotating cylinder; the inner rotating cylinder rotates to keep uniform water outlet of the side wall, meanwhile, the inner gear ring drives the outer rotating cylinder to be in a reverse rotating state on the surface of the transmission shaft through the supporting ring, stirring strips arranged between the inner rotating cylinder and the outer rotating cylinder in a staggered mode continuously shear and mix internal raw materials at the moment, and the raw materials are uniformly mixed with water under continuous dispersion; small wood fibers penetrate through the second t