Portable water pollution detector

The utility model discloses a water pollution detector convenient to carry. The water pollution detector comprises a fixing mechanism, a filtering mechanism and a shell, wherein the fixing mechanism can be used for clamping and fixing the detector; the filtering mechanism can be used for filtering liquid to be detected; the fixing mechanism comprises a first clamping plate and a second clamping plate, the first clamping plate is in sliding connection with the bottom of the shell through a sliding block, a bearing is fixedly connected to the side, away from the second clamping plate, of the first clamping plate, a threaded rod is fixedly sleeved with the bearing, and a rotating piece is fixedly connected to the other end of the threaded rod; the side, away from the first clamping plate, of the second clamping plate is fixedly connected with a connecting rod, the connecting rod is slidably connected with an inserting rod, and the inserting rod is fixedly connected to the inner wall of the shell. By arranging th