Single-power medium-multiple long-range self-suction foaming device

The invention discloses a single-power medium-multiple long-range self-suction foaming device, which belongs to the technical field of fire-fighting equipment, and comprises a fire-fighting quick connector and a pipe body coaxially arranged on the fire-fighting quick connector, and a throttling assembly used for adjusting water flow is arranged between the fire-fighting quick connector and the pipe body. The tail end of the pipe body is coaxially provided with a gradually-shrunk nozzle, a dispersing and rectifying disc located at a water inlet of the nozzle is coaxially arranged in the pipe body, a plurality of triangular overflowing holes are formed in the dispersing and rectifying disc in the circumferential direction, a plurality of gradually-expanding connecting rods are arranged on the outer side of the tail end of the pipe body in the circumferential direction, and the tail ends of the connecting rods are provided with a first barrel with a plurality of through holes. Two layers of foaming nets are coax