Polyester fiber dyeing device

The utility model provides a polyester fiber dyeing device, and relates to the technical field of dyeing devices. The dyeing box body is of a rectangular box-shaped structure. When the impeller rotates, the roller is in contact with the barrier plate, the barrier plate moves up and down under the stirring of the impeller, and when the barrier plate moves up and down, the dye in the dyeing box body can be mixed again; finally, the barrier plate is provided with the through holes in a linear array shape, so that the mixing effect of the dye can be improved through jet flow at the through holes; in the using process, due to the fact that the rolling wheels make contact with the blocking plates, abrasion to the blocking plates can be reduced, multiple mixing can be synchronously achieved while mixing is achieved through one structure, abrasion can be reduced, and the problems that when dye in the dyeing box is not evenly mixed, the dyeing quality is affected, and the dyeing quality is affected are solved. And whe