Beneficiation method for enriching and recovering lithium from native clay type lithium ore

The invention discloses a beneficiation method for enriching and recovering lithium from native clay type lithium ore. The beneficiation method comprises the following steps that S1, the native clay type lithium ore is crushed to-2mm; s2, water is added into the crushed ore for size mixing till the mass concentration of the ore is 30%-40%, and the ore is placed in a stirring container to be fully soaked and stirred; s3, the stirred ore pulp is subjected to 0.1 mm grading, and coarse grains are ground to-0.1 mm; s4, grading the graded ore grinding product to obtain settled sand and overflow; s5, the overflow is subjected to size mixing reverse flotation, three-section flotation is adopted for reverse flotation, the flow of first-section flotation is one-roughing, two-refining and two-sweeping open-circuit flotation, the flow of second-section flotation is one-roughing and two-sweeping open-circuit flotation by combining first-section middlings, the flow of third-section flotation is one-roughing, one-refining