The utility model discloses a novel spraying pump machinery oil cooler structure has reduceed the damage number of times, has reduced cost of maintenance, reaches reduce cost and improve effect's effect, the technical scheme who adopts does: a novel spraying pump machinery oil cooler structure, coolant tank sets up the upper portion at the crankcase, the cooler body sets up in coolant tank, the one end of cooling feed liquor pipeline and the liquid outlet intercommunication of crankcase, the other end of cooling feed liquor pipeline and the inlet intercommunication of cooler body, the liquid outlet by freezing liquid returning pipeline of cooler body and the inlet of crankcase intercommunication, the oil pump sets up on cooling feed liquor pipeline, power supply as the drive coolant liquid, the structure of cooler body for the pipeline of a plurality of U of being types each other end -to -end connection form, and the cooler body is a cast iron casting shaping, the utility model discloses but wide application in spraying pump field.