The utility model discloses an oil pumping well casing valve oil and gas separator for evacuation, polluted environment scheduling problem when having solved the unloading of oily well casing valve. Specifically include: oil gas separation chamber, gas separation mechanism and control of discharge of oil mechanism, oil gas separation chamber, its oil gas entry and well mouth sleeve pipe exit linkage, gas separation mechanism is with oil gas separation chamber's top tube coupling, control of discharge of oil mechanism is connected with oil gas separation chamber's export pipeline. When having realized oily well casing valve evacuation for the separator separation of oil gas has avoided crude oil to cause the environmental pollution of large tracts of land along with high -pressure gas's discharge, sick convenience takes the circumstances into consideration to select to discharge the direction according to actual conditions such as environment, reaches the purpose of safe emission.