The utility model relates to the field of hydraulic prop production equipment, in particular to a cylinder oil removal device for mining hydraulic prop production, which comprises an oil removal tank and a flushing tank, cleaning fluid is arranged in the oil removal tank, a support is arranged in the oil removal tank, a
brush plate is arranged on the support, two support arms are arranged in the oil removal tank in a sliding manner, and the two support arms are connected with the flushing tank. The supporting arms slide in the horizontal direction, driving mechanisms are arranged on the supporting arms and comprise driving shafts, limiting columns are arranged at the free ends of the driving shafts, rubber rings are arranged on the outer sides of the limiting columns, two telescopic rods are arranged in the flushing
pool, one telescopic rod is connected with a flushing
pipe, and the other telescopic rod is provided with a water drainage
pipe. A sliding block is arranged in the flushing
pool in a sliding mode, a flushing ring is arranged on the sliding block, a plurality of pressurizing nozzles are arranged on the inner side of the flushing ring, and a
water supply mechanism connected with the flushing ring and the flushing
pipe is arranged at the lower end of the flushing
pool. The oil removal device has the advantages of being good in oil removal effect and capable of reducing cleaning liquid residues.