Spraying device, dust falling device and crusher

The utility model discloses a spraying device, a dust falling device and a crusher. Spraying device, the device is used for reducing flying dust diffusion in the crushing process of the crusher. Wherein the spraying pipes are arranged on the periphery of the breaking hammer and used for forming structural support and supplying water, the spraying head assemblies are arranged on the spraying pipes,the spraying pipes are arranged at the non-operation end of the breaking hammer and communicated with the water conveying pipeline, and the output ends of the spraying head assemblies are arranged inthe direction facing the dust raising area so that raised dust can be reduced by spraying water mist. The utility model discloses a spraying device. Water is conveyed into the spraying pipe through the water conveying pipeline and then sprayed out of the spraying head assembly on the spraying pipe. The sprayed liquid drops adsorb flying dust; in addition, the spraying pipe is arranged on the periphery of the breaking hamm