Automatic powder dosing device system

The utility model relates to the technical field of sewage treatment equipment, and discloses a powdery automatic dosing device system which comprises a stock bin and further comprises an air storage tank, a feeding pipe is arranged on the stock bin, a first cloth bag dust removal device is arranged at the top of the stock bin, a discharging port of the stock bin is connected with a feeding port of a weighing stock bin through a first material pipe, and a second cloth bag dust removal device is arranged at the bottom of the stock bin. A discharging port of the weighing bin is connected with a feeding port of the dosing box through a second material pipe, an air inlet of the air storage tank is connected with a second air pipe, an air outlet of the air storage tank is connected with the second material pipe through a third air pipe, and an air blowing valve is arranged on the third air pipe. According to the automatic dosing device, automatic weighing and automatic dosing of powdery medicaments can be achieved