Spraying machine for killing indoor biological pests

The utility model relates to the technical field of indoor biological pest killing, and discloses a spraying machine for indoor biological pest killing, which comprises a mounting seat, walking wheels are arranged at the bottom of the mounting seat, a driving device is arranged above the mounting seat, a control handle is arranged at the upper end of the driving device, and the control handle is arranged at the lower end of the mounting seat. A seat plate is arranged on the right side of the driving device, a liquid medicine storage box is arranged on the left side of the driving device, a telescopic rod is arranged on the left side of the liquid medicine storage box, a mounting plate is fixedly mounted above the telescopic rod, a fan box is mounted above the mounting plate, and an infusion pump is arranged above the liquid medicine storage box. An operator sits on the seat plate to operate the spraying machine to move, the walking wheels are driven to rotate through the driving device, then the spraying mach