Drainage device for diarrhea patient

The utility model relates to the technical field of medical tools, in particular to a diarrhea patient drainage device which comprises a tube body and an air bag, the tube body comprises an inner tube and an outer tube, the outer tube is arranged outside the inner tube in a sleeved mode, the two ends of the outer tube are open, one end of the outer tube is an insertion end inserted into an anal tube, and the other end of the outer tube is a drainage end connected with a drainage bag. One end of the inner tube is an opening end flush with the insertion end, the other end of the inner tube is a closed end, the closed end is arranged in the outer tube, an inner tube opening is formed in the inner tube, the inner tube opening penetrates through the outer tube and extends out of the outer tube, the air bag is located between the inner tube opening and the insertion end, and the air bag is arranged in the outer tube. The diarrhea patient drainage device solves the problem that an existing diarrhea patient drainage