Unpowered spraying device capable of intelligently adjusting pesticide proportion

The invention provides an unpowered spraying device capable of intelligently adjusting the medicament proportion, and belongs to the technical field of coal mine spraying and dust falling. Comprising a base, a spraying shell is installed on the base, a fan is fixed to one end of the spraying shell, a bearing seat is fixed to the interior of the spraying shell, a first rotating shaft is fixed to the bearing seat, a wind paddle is fixed to one end of the first rotating shaft, a first bevel gear is fixed to the other end of the first rotating shaft, and a transmission assembly is rotationally connected to the spraying shell through a bearing; an air pump is installed on the outer side of the transmission assembly, one end of the transmission assembly is meshed with the first bevel gear, and the other end of the transmission assembly is connected with the input end of the air pump. According to the device, the proportion of chemicals is intelligently adjusted, so that water and the chemicals can be uniformly mixe