Waste oil edulcoration device

The utility model provides a waste oil edulcoration device, includes settling cask, piston cylinder and filter, the settling cask is top confined hollow body, and its jar of body is from last to being equipped with oil -out, oil inlet and row's cinder notch down in proper order, the stopper jar is installed on the settling cask top surface, the filter includes the connecting rod, crosses the filter frame, fixed connection is at the apron of crossing filter frame upper end opening part and pack the wire net in crossing the filter frame, connecting rod one end and apron fixed connection, the other end is connected with the end of the piston rod of piston cylinder. During the installation, cross the filter frame and install in the inner wall of settling cask, be epicoele and cavity of resorption with settling cask internal partitioning to guarantee oil inlet and cavity of resorption intercommunication, oil -out and superior connectivity. The used oil passes through inside the oil inlet gets into the settling cask during use, when the used oil with cross filter frame contact back, solid particle impurity is subsided jar body bottom or adhesion on the wire net by the interception, the used oil that covers the oil through entering epicoele on the apron is not including the used oil of impurity.