NOVELTY - Quantitative feeding and discharging grid-type marsh gas production device comprises a marsh gas tank, a feed box, a seal fixed with a top cover of the box operation channel, a lifting device, a feeding port, and a discharging port, where the marsh gas tank is set on the biogas slurry reflowing device, the fermenting inner space is set between the feeding hole and discharge hole of inner marsh gas tank. The gas tank top is set with a top cover set with one air outlet, where one end is set with marsh gas pool feeding port, and marsh gas tank other end is set with a discharging port.    USE - Used as a quantitative feeding and discharging grid-type marsh gas production device.    ADVANTAGE - The device is simple in structure, is convenient to operate, has high operating efficiency, can quantitatively control fermentation, and assures quantitative feeding and discharging.    DETAILED DESCRIPTION - Quantitative feeding and discharging grid-type marsh gas production device comprises a marsh gas tank, a feed box, a seal fixed with a top cover of the box operation channel, a lifting device, a feeding port, and a discharging port, where the marsh gas tank is set on the biogas slurry reflowing device, the fermenting inner space is set between the feeding hole and discharge hole of inner marsh gas tank. The gas tank top is set with a top cover set with one air outlet, where one end is set with marsh gas pool feeding port, and marsh gas tank other end is set with a discharging port. The feeding port and lower discharge hole corresponding to the bottom of the marsh gas tank is set with a guide rail. The guide rail two sides are set with heating pipeline and feed operation channel set in a pole guide rail top part. The bottom of box is matched with the guide rail of roller. The bottom part through box lifting device from the feeding port enters into marsh gas tank and connects with the guide rail. The feed from fermenting space runs into the discharging port by box lifting device and taken out from box, and the inner upper outer wall of the shell of box is set with a grid and the shell is uniformly distributed through clapboard set with the multi-layer. The marsh gas tank inner guide rail peripheral side is set with two strain attach film.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the Quantitative feeding and discharging grid-type marsh gas production device (Drawing includes non-English language text).    (1)    (2)    (3)    (4)    (5)