Disposable multifunctional nasal gastrointestinal tube

The disposable multifunctional nasal gastrointestinal tube comprises a guide cannula and a combined feeding tube with the length larger than that of the guide cannula, and side holes are formed in the surface of the end of the combined feeding tube; an outer tube connecting seat is arranged at the end part of the guide sleeve, and the end part of the combined feeding tube penetrates out of the end part of the outer tube connecting seat and is connected with a Luer locking joint; the outer wall of the outer tube connecting seat is connected with a flip assembly, and the combined feeding tube at least comprises two independent tube bodies used for conveying nutrient substances or performing negative pressure extraction work. The guide sleeve is used for fixing the guide cavity from the nasal cavity to the throat, the combined feeding tube penetrates into the esophagus from the guide sleeve and enters the stomach or the intestinal tract, and the pain of a patient caused by repeated intubation is reduced. The com