The utility model relates to a colliery primary fan noise control shuts down alarm system, including the acoustic control module, the inside of acoustic control module is equipped with the acoustic control switch, the acoustic control switch has the relay through the line connection, the normally closed contact of relay connects alarm switch, alarm switch still establishes ties there is audible -visual annunciator, the system is by 220V voltage mains operated, the utility model discloses the device action is reliable, and sensitivity is high, and the warning operating personnel that can in time report to the police in time handles and resumes primary fan normal operating, utilizing the acoustic control principle, being aided with corresponding control circuit, the disorderly close -down ofreal time monitoring primary fan has improved the flat recessiveness and the security of equipment operation greatly.