Efficient water-based paint grinding machine

The utility model belongs to the field of paint production, is used for dispersing pigment aggregates, and particularly relates to a high-efficiency water-based paint grinding machine which comprises a grinding mechanism for grinding paint and a box base for supporting the grinding mechanism, the cooling mechanism is mounted on the outer side of the grinding mechanism in a sleeving manner and is used for cooling a grinding cavity of the grinding mechanism; the cooling mechanism comprises a cooling sleeve fixedly connected with the grinding mechanism, and a cooling cavity used for containing a heat-conducting medium is formed between the cooling sleeve and the grinding mechanism. The cooling cavity is filled with the heat-conducting medium, heat generated when the grinding mechanism works can be transmitted to the cooling spiral pipe through the heat-conducting medium, the heat-conducting medium is water, and each position of the cooling cavity can be filled with the water, so that the contact area of the cool