Tail nozzle structure suitable for double-duct turbofan engine

The invention discloses an exhaust nozzle structure suitable for a double-duct turbofan engine, relates to the technical field of aero-engines, and aims to reduce the difficulty of stable connection of an exhaust nozzle on the double-duct engine. An exhaust nozzle structure suitable for a double-duct turbofan engine comprises an inner cone, a middle casing and an outer casing which are sequentially arranged from inside to outside, an inner duct is arranged between the inner cone and the middle casing, and an outer duct is arranged between the middle casing and the outer casing. The connecting supports are distributed in the circumferential direction of the inner cone, the outer ends of the connecting supports are fixedly connected to the outer casing, the middle casing is fixedly connected to the connecting supports, a flange plate is arranged on the middle casing, and the flange plate is detachably connected to a stator of an engine. 一种适合于双涵道涡扇发动机的尾喷管结构，涉及航空发动机技术领域，用于降低尾喷管在双涵道发动机上稳定连接的难度。一种适合于双涵道涡扇发动机的尾喷管结构，