Double-cavity type intrathoracis drain

The utility model discloses a double-bag chest cavity drainage pipe which comprises a silicon gel drainage pipe; wherein the front end of the drainage pipe is provided with a drainage hole; the utility model is characterized in that the front part of the drainage pipe is provided with two water filling bags, the distance between the two water filling bags is corresponding with the thickness of the chest wall, the two sides of the drainage pipe wall are provided with a two-cavity water filling pipe, the two-cavity water filling pipe is respectively communicated with the two water filling bags, and the back end pipe openings of the drainage pipe and the two-cavity water filling pipe are respectively provided with a cap plug. When implementing the drainage with the utility model, after the silicon gel pipe is inserted into the chest cavity, two water filling bags are respectively arranged inside and outside the chest cavity and then the water filling pipe fills water to make the two water filling bags full and block up the drainage opening of the chest wall, which solves the problem of that the drainage pipe is pulled out of the chest cavity, doesn't need a plurality of puncture intubations, and reduces the pain of the patients.