Combined dosing device

The utility model relates to a combined dosing device. The device comprises a combined device consisting of a plurality of solution tanks, all the solution tanks are connected with one another and arefixed on the platform together; the solution tank comprises an organic sulfur metering tank, a coagulant metering tank and an oxidant metering tank; the solution tanks with the same solution are arranged and fixed next to each other; the solution box group corresponding to each solution is correspondingly provided with a dosing pipeline; a metering pump is arranged on the dosing pipeline; a Y-shaped filter is arranged at the water inlet section of the dosing pipeline; the water outlet section is provided with a pulse damper and a pressure release valve; compared with the prior art, the utility model discloses a combined dosing device. Single solution tanks are combined; a user only needs to place the combined dosing device in a dosing room, connect the dosing pipe and switch on a power supply to start and put the