Two-dimensional plug nozzle with thrust reversing function

The invention relates to the technical field of structure design of aircraft engines, in particular to a two-dimensional plug nozzle with a thrust reversing function. The front end of a circular-rotating square-barrel body is connected with an engine, and the rear end of the circular-rotating square-barrel body is fixedly connected with two side wall boards distributed in left-right symmetry and two horizontal wall boards distributed in vertical symmetry. An adjustable wall board is a part of each horizontal wall board, and an adjustable baffle is a part of a plug cone. When the adjustable baffle rotates by a preset angle, the adjustable wall boards rotate synchronously, and a thrust reversing exhaust channel is formed by the adjustable wall boards, the left side wall board and the right side wall board. According to the two-dimensional plug nozzle with the thrust reversing function, on the premise that the thrust reversing function is achieved, the structure type and the function of a conventional two-dimensional plug nozzle are guaranteed; the overall dimension is small, the weight is low, the structure is simple, and the reliability is high; integral design of a rear fuselage is facilitated, and the defects of a conventional nozzle thrust reverser are overcome.