The invention relates to the technical field of vegetable products, in particular to secondary garlic oil purification equipment. The equipment comprises a mixing shell and a discharge pipe, wherein the bottom of the mixing shell is communicated with the discharge pipe, the inner side of the discharge pipe is fixedly connected with a discharge valve, and the inner side of the mixing shell is fixedly connected with a fixing rod; the bottom of the fixing rod is fixedly connected with a button, the inner side of the fixing rod is slidably connected with a bent rod, the top of the bent rod is fixedly connected with a floating ball, and the right end of the fixing rod is communicated with a water pump arranged vertically; the top of the water pump is communicated with a feeding pipe, the innerside of the feeding pipe is fixedly connected with a feeding valve, and the inner side of the mixing shell is fixedly connected with a heating rod. According to the equipment, through arrangement of the water pump, floating ball and button, automated and repeated extraction and purification of garlic oil are achieved; time and strength are saved, manual operation is reduced, and meanwhile, the garlic oil is prevented from being contaminated by outside air, so that the purity of the garlic oil is ensured, and industrial expansion is facilitated.