Double-lumen endobronchial tube

The invention discloses a double-lumen endobronchial tube. The double-lumen endobronchial tube comprises a tube body to be inserted into a patient's bronchus, inflation valves, and an air bag; an auxiliary vent pipe and a main vent pipe are arranged in the tube of the tube body in an inserted way; the auxiliary vent pipe is seized inside the main vent pipe; a rubber snap ring is arranged outside one end of the auxiliary vent pipe; the inflation valves comprise a tube inflation valve and a vent pipe inflation valve; the tube inflation valve is arranged on the tube body; the vent pipe inflationvalve is arranged on the auxiliary vent pipe; the auxiliary vent pipe is inserted into the main vent pipe; and the auxiliary vent pipe and the main vent pipe themselves have certain radian, so that the auxiliary vent pipe and the main vent pipe can easily enter bilateral bronchi after extending into the interior of the tube body so as to facilitate tube insertion. Compared with the prior art, operation is carried out by adopting the auxiliary vent pipe with small diameter in the scheme, so that tube insertion is facilitated; and moreover, the auxiliary vent pipe with small diameter itself hasa certain moving radian, so that the auxiliary vent pipe can easily extend into the interior of the left bronchus so as to facilitate treatment.