Circulating crystallizer with one-way flow

The utility model discloses a one-way flow circulating crystallizer, which belongs to the technical field of circulating crystallizers, and is characterized in that a feeding pipe is connected with baking soda solution to be pumped in, then a driving motor is started to drive a rotating shaft and a side stirring rod to stir, and meanwhile, the rotating shaft drives a first bevel gear to move; a second bevel gear is adjusted through a first bevel gear to move, a horizontal rotating rod is adjusted through the second bevel gear to move, and a rotating disc and a hinge rod are adjusted through the horizontal rotating rod to drive a piston to reciprocate in a sliding cylinder. The piston reciprocates in the sliding cylinder to adjust the first one-way valve, the feeding port, the first limiting spring, the second one-way valve, the discharging port and the second limiting spring to achieve the material sucking and guiding functions, a water pump does not need to be used independently in the process, cost is saved