Reusable assembled drilling mud circulating tank

The utility model relates to the technical field of slurry tanks, and discloses a reusable assembled drilling slurry circulating tank which comprises a first straight tank, a settling pond, a second straight tank and a cylindrical tank, the number of the first straight grooves is multiple, and the multiple first straight grooves communicate with one another. The sedimentation tank is mounted between two adjacent first straight grooves, and the sedimentation tank is communicated with the first straight grooves; a cylindrical groove is formed in one end of the first straight groove, and the cylindrical groove is communicated with the first straight groove; two ends of the second straight groove are respectively communicated with one end of the first straight groove; a protective net is arranged on the upper side of the first straight groove. The device has the advantages that the device can be repeatedly used and is provided with the protective net, and the problems that in the construction process, a large amo