Diaphragm filter plate

The utility model provides a diaphragm filter plate which comprises a filter plate body and a diaphragm, wherein the filter plate body comprises a sheet frame and a middle part arranged on the sheet frame; the diaphragm is arranged at the middle part; a diaphragm cavity is formed between the inner side of the diaphragm and the middle part; at least one run-through outlet and at least one runner are arranged on the sheet frame; one end of the runner is connected with the outlet, and the other end of the runner extends to the outer side of the diaphragm; a run-through feed hole is formed in the lower end of the sheet frame or in the middle part; at least two liquid inlets are formed in the lower end of the sheet frame; at least two liquid outlets are formed in the upper end of the sheet frame; one of the liquid inlets and one of the liquid outlets are communicated with the diaphragm cavity. When the diaphragm filter plate is under operation, a hose is prevented from being externally connected onto each filter plate body, and thermal medium circulation can be realized as long as heating medium inlet/outlet pipelines are externally connected onto a head plate and a tail plate of a filter press, so that the installation, replacement and maintenance working strength is reduced, the heat dissipation area is reduced, and energy consumption is reduced.