Circulating water scale inhibitor dosing device

The utility model discloses a circulating water scale inhibitor dosing device which comprises a circulating water tank, the inner wall of the top of the circulating water tank is rotatably connected with a stirring shaft, the outer wall of the stirring shaft is fixedly connected with a plurality of groups of first stirring rods which are distributed at equal intervals, and a filter screen which is fixedly connected with the inner wall of the circulating water tank is arranged below the stirring shaft. Circulating water is added into a circulating water tank through a circulating water inlet pipe and filtered through a filter screen, a first motor and a second motor are started, an output shaft of the second motor rotates to drive a rotating shaft to rotate so as to drive a second stirring rod to rotate, and when a through groove rotates to the position above a chemical inlet groove, an antisludging agent is added into the circulating water tank through the through groove and the chemical inlet groove; the out