Disinfection spraying device for preventing diseases

The invention relates to a disinfection spraying device for preventing diseases. The disinfection spraying device comprises a disinfection vehicle, wherein a liquid storage tank is arranged on the disinfection vehicle; a first rotary disc and a second rotary disc are arranged above the liquid storage tank; a third rotary disc is arranged below the first rotary disc slantly; a fourth rotary disc isarranged above the second rotary disc slantly; the third rotary disc is fixedly connected with a stirring rod; a water suction pump is arranged above the fourth rotary disc; the upper part of the water suction pump communicates with a spray head; a vertical shaft is fixedly connected between the water suction pump and the fourth rotary disc; through holes are formed in the first rotary disc, thesecond rotary disc, the third rotary disc and the fourth rotary disc respectively; a first through pipe is sleeved between the through hole in the first rotary disc and the through hole in the secondrotary disc; a second throu