The utility model discloses an environment-friendly pig farm sewage collection pool. The system comprises a first manure collection tank and a second manure collection tank, stirring rods are symmetrically arranged in the first manure collection tank; a stirring motor is arranged on the top left side of the first manure collection tank; a filter screen is arranged in the middle of the first manurecollection tank; the right end of the filter screen is connected with a tank body; a blow-off pipe is arranged at the bottom of the first manure collection tank; a second manure collection tank is arranged on the right side of the first manure collection tank; a sealing door is arranged at the top of the second excrement collecting tank, a fine sand net filtering frame is arranged in the second excrement collecting tank, a fine sand cotton filtering frame is arranged at the bottom of the fine sand net filtering frame, an activated carbon filtering frame is arranged at the bottom of the fine sand cotton filtering frame, an air blower is arranged at the upper right end of the second excrement collecting tank, and a blow-off pipe is communicated with the upper left end of the second excrement collecting tank; according to the utility model, the treatment problems of sewage, excrement and the like are effectively solved, the filtering speed is effectively increased, the working efficiencyof excrement treatment is improved, the interior of the device is convenient to directly clean and wash, and parts are also convenient to check, maintain and replace.