Foot tub

The invention provides a foot tub, and belongs to the technical field of bath goods. The foot tub comprises a tub body and a tub cover, a partition plate and a limiting plate are arranged in the tub body, the partition plate is fixedly connected with the bottom and one side wall of the tub body, the limiting plate is detachably connected to the lower portion in the tub body, and the partition plate and the limiting plate jointly divide the interior of the tub body into a medicine adding cavity, a backflow cavity and a foot bath cavity. A plurality of positioning columns are distributed at the bottom of the backflow cavity, and each positioning column is sleeved with an elastic rubber ring and a cover cap at a time from bottom to top; a plurality of through holes in one-to-one correspondence with the positioning columns are distributed in the limiting plate, and the caps are inserted into the corresponding through holes; a check ring is fixed at the bottom of each cover cap, each check ring is located below th