Pleural effusion drainage tube of sucking disc type

The utility model discloses a pleural effusion drainage tube of a sucking disc type, and the drainage tube comprises: a vertical insertion pipe; a telescoping pipe which is in sealed connection with the top of the vertical insertion pipe, wherein the wall of the telescoping pipe consists of a plurality of identical wrinkles; a drainage pipe which is in sealed connection with the telescoping pipe, and forms a liquid drainage channel along with the telescoping pipe and the insertion pipe; a flat cone adsorption disc which is in sealed connection at the joint of the insertion pipe with the telescoping pipe, wherein the cavity of the adsorption disc vertically faces downwards; and a hollow disc-shaped bonding plane which is connected with the edge of the bottom of the adsorption disc. The drainage tube provided by the utility model solves the technical problem that a patient is painful caused by that a syringe needle is very easy to fall or touch other organs in a thoracic cavity during drainage of pleural effusion.