The utility model relates to an oil well maintenance professional equipment, concretely relates to oil well light maintenance operation environment -friendly device comprises real empty can and vortexfan, is equipped with manhole and pressure release hole respectively on real empty can's top, and the lower part that upper portion was equipped with sewage import, the other end in real empty can one end is equipped with the outlet of sewer, is equipped with the drain on real empty can's jar is personally experienced sth. Part of the body, and upper portion in real empty can is equipped with high -order float gauge, the lower part is equipped with low level float gauge, vortex fan's sunction inlet and pressure release hole tube coupling. This device is equipped with remote sensing units suchas height float gauge, temperature sensing, by the unified remote signal that handles of intelligent electrical control cabinet, realizes full process automation, and it is equipped with heating units such as electric heater, hot -blast curtain simultaneously, has realized that environment -friendly device is not influenced by ambient temperature, this installation of automated degree height, theimprovement production efficiency that can show alleviate workman's intensity of labour, have reduce cost, avoid environmental pollution.