Hydraulic device for debugging engine jet pipe

The utility model relates to a hydraulic device for debugging an engine jet pipe, which comprises an oil tank, a valve, a pressure regulating valve, an oil pump, a thin pressure regulating valve, a high-pressure oil filter, a check valve, a pedal oil pump, a three-position four-way electromagnetic valve, a jet pipe synchronous hydraulic actuation system, a jet pipe asynchronous hydraulic actuation system, a pressure reducing valve, a pressure gage, a pressure gage switch, three-way valves, a flow meter, an overflow valve, an adjustable back pressure valve and an oil cooler, wherein the oil pump is communicated with the three-position four-way electromagnetic valve; the three-position four-way electromagnetic valve is respectively connected with the jet pipe synchronous hydraulic actuation system by pipelines provided with the three-way valves; and the two three-way valves are respectively connected with the pedal oil pump. The hydraulic device has the advantages that synchronous adjustment and a sealing test