The invention relates to continuous dry mortar mixing equipment. The continuous dry mortar mixing equipment comprises a charging barrel, a stirrer and a conveying screw which are connected sequentially from top to bottom; the charging barrel comprises a barrel body and blanking partitions, and the blanking partitions are arranged in the charging barrel in a staggered manner in the blanking direction; the stirrer consists of a shell, a rotating shaft and a plurality of rotating blades; the rotating shaft is arranged in the shell, and the plurality of rotating blades are evenly distributed in the circumferential direction of the rotating shaft. The continuous dry mortar mixing equipment has the beneficial effects that a collection barrel, a stirrer and the charging screw are combined to realize three times of mixing of materials. Differing from the conventional mixer, the mixing process is continuous, mixing is relatively even, and the production efficiency of dry mixed mortar is improved to a greater extent. The power consumption of complete equipment is only about 15kw.