CRRT waste liquid bag

The utility model relates to the technical field of waste liquid collecting bags. The CRRT waste liquid bag comprises a bag body, the end of the bag body is provided with a water-gas sealing zipper used for closing and sealing a bag opening in the bag body, the front side face of the bag body is provided with a rough-face hook-and-loop fastener, and the end, provided with the water-gas sealing zipper, of the bag body is further provided with a waste liquid inlet pipe and a waste liquid outlet pipe. A zipper head limiting device is arranged on the bag body, the zipper head limiting device comprises a hook-and-loop fastener, one end of the hook-and-loop fastener is tightly bonded to the rear side face of the bag body, and lateral blocking strips are arranged on the left side and the right side of the hook-and-loop fastener respectively. The water-gas sealing zipper is convenient to operate, waste liquid can be conveniently poured out after the water-gas sealing zipper is unzipped, time is saved, and convenience