The invention discloses an automobile oil-well pump convenient to use. The oil-well pump convenient to use comprises a pump body; an oil outlet pipe is arranged on the upper portion of the pump body, an oil inlet pipe is arranged on the lower portion of the pump body, oil pipe heads are arranged inside the oil inlet pipe and the oil outlet pipe correspondingly, and the oil outlet pipe and oil inlet pipe are correspondingly connected with the pump body and the oil pipe heads through screw threads; a telescopic support column is arranged on the right side of the oil inlet pipe and connected with the oil inlet pipe through flange plates, a first connecting plate is arranged between the flange plates, a second connecting plate is connected with the telescopic support column and the oil inlet pipe through bolts correspondingly, and a power switch is arranged outside the second connecting plate; and a support plate is arranged on the lower portion of the telescopic support column and connected with the telescopic support column through screw threads. Since the additionally arranged oil inlet pipe and the telescopic support column are connected through the flange plates, the automobile oil-well pump is convenient to dismount and can be conveniently adjusted in height, improves using convenience, and is simple in structure and easy to achieve.