Online pH analyzer with filtering function

The utility model discloses an on-line pH analyzer with a filtering function, which comprises a settling tank, a filter screen, a liquid inlet, a liquid outlet and a liquid outlet, wherein the top side of the settling tank is provided with an opening, the bottom of the settling tank is provided with a drain outlet, and the side part of the settling tank is provided with a liquid inlet; the bottom side of the sampling tank is connected with the top side of the settling tank, a partition plate is arranged in the sampling tank, the sampling tank is divided into a detection chamber and a liquid discharge chamber through the partition plate, a liquid discharge port is formed in one side of the liquid discharge chamber, a filter plate is arranged on the bottom side of the detection chamber, and the detection chamber is communicated with the settling tank through the filter plate; the pH measurement sensor is detachably arranged in the detection chamber, and the height of the pH measurement sensor is not higher than