The invention discloses a wet process straightening granulator. The straightening granulator comprises a driving mechanism and a straightening granulating mechanism; an output synchronizing wheel is installed on a variable frequency motor shaft of the driving mechanism, the lower part of a main shaft is provided with an input synchronizing wheel, the input synchronizing wheel is linked with the output synchronizing wheel through a synchronizing belt; a straightening granulating cutter of the straightening granulating mechanism is fixedly installed between a connecting seat and a cylinder body; a straightening granulating screen and a stirring cutter are fixedly integrated through a space ring and a nut screwed on the upper end of the main shaft, the stirring cutter and the straightening granulating screen can simultaneously rotate at a high speed under the driving of the main shaft; the stirring cutter plays a rotational flow effect on the raw material, and throws the raw material to the straightening granulating screen by using the centrifugal force, the straightening granulating cutter is stationary, the straightening granulating screen in high speed rotation and the straightening granulating cutter produce a relative shearing effect, the material is crushed into the small particles, the small particles are fast discharged from screen holes under the centrifugal force produced by the high speed rotated straightening granulating screen, and the small particles cannot be adhered and stacked on the outside of the screen, the straightening granulating efficiency is high, and the effect is good.