The utility model discloses a primary mineral desliming device, include: first funnel, first funnel has first feed inlet, the upper portion of first funnel is equipped with first overflow mouth, the lower part of first funnel is equipped with the first mouth that shakes out, the second funnel, the second funnel is established first funnel below, the second funnel has the second feed inlet, the second feed inlet with the first mouthful intercommunication that shakes out, the upper portion of second funnel is equipped with the second overflow mouth, the lower part of second funnel is equipped with the second mouth that shakes out. According to the utility model discloses a primary mineral desliming device successively selects separately former ore pulp through first funnel and second funnel, breaks away from 50% mud in the former ore pulp in advance, and significantly reduce follow -up equipment quantity and plant capacity improve mine production facility comprehensive utilization, whole install in the course of the work safe and reliable, overall structure simple, need not personnel's operation, the during operation need not to adjust again and to satisfy the production requirement.