Spraying disinfection device for large-scale farm

The utility model provides a spray disinfection device for a large-scale farm, which comprises a driving assembly, a storage assembly, a spray assembly, a support plate, moving wheels, a motor I, a transmission belt, an energy storage battery, a storage box, a liquid injection port, a motor II, a driving fan blade, a control valve, a compression tank, a telescopic cylinder, a fixed plate, a spray head cover, a spray head I, a spray head II, a rotating shaft and a telescopic pipe, a disinfectant is firstly added into the storage box from the liquid injection port, the whole device moves forwards after the first motor is started, the second motor is started to drive the driving fan blades to rotate so as to convey the disinfectant into the compression tank, and the disinfectant continuously enters the compression tank and is compressed in the compression tank; the heights of the first spray head and the second spray head are adjusted by adjusting the height of the telescopic air cylinder, disinfectant is spraye