Special ejector with multilevel hydraulic ejecting and staged fracturing

The invention relates to a special ejector with multilevel hydraulic ejecting and staged fracturing in the field of underground acid fracturing production increasing tools for petroleum and natural gas. The special ejector comprises a hollow cylinder; the upper and lower ends of the body are respectively provided with a connection button; a plurality of sprayer assemblies are arranged at the side wall of the body; each sprayer assembly comprises a sprayer, a sprayer jacket and a sprayer pressing cap; the sprayer jackets are in threaded connection with the body; the sprayers are matched and sleeved in the sprayer jackets and the inner end surfaces of the sprayers are fixed with the pressing caps in threaded connection with the sprayer jackets; a hard alloy cover for preventing the sprayers from outwards separating is arranged at the outer periphery of the body. The special ejector is firm and reliable in structural connection, an ejecting tool is effectively prevented from separating and being blocked in the operation process and the injury to a human body by splattering sands is reduced.