The automatic controllable spray sprinkler device at the transfer point of the belt belonged to the mechanical automatic controllable spray sprinkler device. It was mainly used to control the spray point device of the transfer point of the coal mine belt conveyor through mechanical touch, to achieve the purpose of automatic water spraying and dust reduction. By automatically adjusting the spray flow rate through the amount of coal, the concept of spray and coal flow synchronization was realized, and it was suitable for installation on various types of belt conveyors to achieve the effect of automatic spray dust reduction.