The invention discloses a fixed type composite jet extinguishing device which comprises a control compartment. With direct current pressure water as a carrier, the fixed type composite jet extinguishing device is provided with a superfine dry powder tank, a compressed air pipeline, a cooler, an air inlet control valve, a powder outlet control valve, a powder outlet pipeline, a water outlet control valve, a water outlet pipeline, a jet device, a foam proportion mixer, a B type foam tank, a foam pipeline, a FireAde 2000 or F500 solution tank, a FireAde 2000 or F500 liquid outlet control valve, a B type foam liquid outlet control valve, a water source, a water supply control valve, a fire pump, a drive shaft, a vane air compressor, a power dividing compartment and a motor. Power generated by the motor respectively drives the cooler and the vane air compressor after passing through the power dividing compartment and drives the fire water pump after passing through the drive shaft. The fixed type composite jet extinguishing device disclosed by the invention organically combines extinguishing agent, such as water, B type foam mixed liquid, FireAde 2000 (or F500) mixed liquid, superfine dry powder, and the like, has the effects of performance compatibility and advantage complementation and exceeds the traditional single and narrow defined extinguishing technology.