Long plunger sand setting and oil drainage integrated multifunctional oil well pump

The invention belongs to the technical field of oil exploitation equipment, and particularly relates to a long plunger sand setting and oil drainage integrated multifunctional oil well pump, which comprises a pump cylinder assembly, and is characterized in that the pump cylinder assembly is connected with an oil drainage device assembly and a standing valve two-way assembly, the oil drainage device assembly comprises an oil drainage device main body, an oil drainage device copper hoop, a red copper pad and an oil drainage device short section, and the standing valve two-way assembly is connected with the standing valve two-way assembly. The standing valve two-way assembly comprises an upper fixing cover, an upper fixing valve ball, an upper fixing valve seat, a lower fixing cover, a lower fixing valve ball, a lower fixing valve seat, a lower fixing valve seat pressing cap, a two-way valve in threaded connection with the lower fixing valve seat pressing cap, and a plug. On the basis of a long plunger desilting