Liquid drainage system of vertical concentration filter

The utility model discloses a liquid discharge system of a vertical concentration filter. The liquid discharge system comprises a stock bin shell, the interior of a stock bin surrounded by the stock bin shell is divided into a lower concentration cavity and an upper liquid collection cavity which are relatively independent by a cavity division partition plate, and the concentration cavity is communicated with the liquid collection cavity through filter elements arranged in the concentration cavity; filtrate generated by the filter element in the concentration cavity upflows into the liquid collection cavity through the filtrate cavity of the filter element. On the basis of the stock bin shell, the stock bin is divided into the liquid collecting cavity and the concentration cavity which are relatively independent in upper and lower positions and are communicated through the filter elements, filtrate separated from the concentration cavity upflows into the liquid collecting cavity through the filter elements, t