Ventilation device for workshop

The utility model discloses a ventilation device for a workshop, and relates to the technical field of workshop ventilation. The device comprises a box body, a mounting box is arranged on the left side of a water filtering plate, a water curtain spray head is fixed on the lower wall of the mounting box, a delivery pump is fixed on the upper wall of the box body corresponding to the position of the water curtain spray head, a motor II is arranged on the right side of the upper side of the box body, and fan blades are fixed on a power output shaft of the motor II; a mounting plate is arranged below the box body, universal wheels are fixed to the front end and the rear end of the right side of the lower wall of the mounting plate, rolling wheels are arranged on the left sides of the universal wheels, first motors are arranged on the outer sides of the rolling wheels, dampers are fixed to the four corners of the upper wall of the mounting plate, and damping springs are arranged outside the dampers. Harmful substa