Automatic dust device of hole room construction

The utility model provides an automatic dust device of hole room construction, includes the injection spray pipe, the injection spray pipe passes through the grasp and fixes the basement rock face in hole roof portion, injection spray pipe one end tip pass through the three-way pipe respectively with delivery pipe and air feed pipe intercommunication, bore on stating the injection spray pipe and be equipped with a plurality of spraying aperture, be provided with the solenoid valve between injection spray pipe and delivery pipe and air feed are managed respectively, the solenoid valve be connected with timer or dust detection device. The utility model provides a pair of automatic dust device of hole room construction, simple structure, the installation is swift, and low cost need not the outer equipment of increase, through the water under high pressure spraying, makes water smoke and dust combine, reaches dust suppression effect to improve hole room air quality, guarantee the construction environment. The device has automatic function, can detect indoor dust content in hole and automatic start water spray or spraying, also usable timer control solenoid valve regularly starts water spray or spraying.