Potato powder production line

The invention provides a potato powder production line, and belongs to the technical field of production equipment. The potato powder production line solves the technical problem of existing potato powder production equipment on relatively bad mashing effects because mashed potatoes are mainly prepared by roller extrusion. The potato powder production line comprises a washing mechanism, a crushingmechanism, and a drying mechanism; and the crushing mechanism comprises a shell. The potato powder production line is characterized in that, between inner side walls of the shell, two parallel rollers are rotatably installed, and a left grinding barrel and a right grinding barrel are arranged in left-and-right parallel arrangement; a plurality of cutting knives are installed along circumference of both outer circumferential surfaces of the two rollers; the two rollers are driven by a transmission chain one in the same direction; the left grinding barrel and the right grinding barrel are located under the rollers, and