The invention discloses a soil engineering centrifugal machine structure in a single-layer layout. By adopting a mobile slurry tank, the problem is solved that a slurry pond is difficultly formed on some construction sites; by adopting the mobile slurry tank, digging, protection, backfill and other work of the slurry pond are reduced, the construction process is reduced, and the progress of the construction period is accelerated; by adopting the mobile slurry tank, a rolling mechanism is installed on the lower portion of a bearing platform, the mobile slurry tank is convenient to transfer accordingly, one tank can be used at multiple places, and compared with digging of multiple slurry ponds, the tank is more economical; according to a working method of the mobile slurry tank, a screw jackis adopted for lifting the whole tank, wood lumps are placed in the tank for supporting, and circulation and precipitation of slurry can be conducted stably; after the slurry is treated, the mobile slurry tank is convenient to move.