The utility model relates to the technical field of
agriculture, in particular to an air sterilization device for
agriculture, which comprises a bottom plate, a
pesticide spraying device and a storage
barrel, a purifying box is arranged on the upper side wall of the bottom plate, the
pesticide spraying device comprises an adjusting box, a sliding rod, a lifting block and a spray head with a water pump, a cavity is arranged in the adjusting box, and the sliding rod is arranged in the cavity. A through opening is formed in the front side wall of the adjusting box, a first motor is arranged on the upper side wall of the adjusting box, a connecting box is arranged at the front end of the lifting block, a connecting rod is arranged in the connecting box and penetrates through the connecting box, a second motor is arranged on one side wall of the connecting box, and a connecting
pipe is arranged at the front end of the connecting rod. The
sprayer is arranged at the front end of the connecting
pipe, the lower end of the connecting
pipe penetrates through the bottom wall of the storage
barrel, it can be guaranteed that liquid
medicine is sprayed out at proper pressure and flow, uniform
medicine mist is formed, accurate spraying of the liquid
medicine is achieved, and harmful microorganisms in air are effectively killed.