The invention discloses an integrated type polygonal sludge residue soil treatment device which at least comprises a grinding part and a mud-sand separating part; a grinding member used for preliminarily crushing mud sand is arranged on the inner wall of the grinding part; crushed mud sand is fed into the mud-sand separating part; a high-pressure diluted water spray nozzle is arranged at the outer side of the mud-sand separating part, and is used for diluting mud sand into diluted mud sand; the mud-sand separating part allows a thin mud sand mixture with a particle diameter smaller than a predetermined particle diameter of large materials to pass through, and a large material mixture with the particle diameter greater than or equal to the predetermined diameter of the large materials is discharged from a discharge hole; the cross section of the grinding part and the cross section of the mud-sand separating part are in the forms of regular polygons; a vibrating unit is further arranged on the outer wall of the mud-sand separating unit; the vibrating unit comprises a spring bracket used for supporting the mud-sand separating part and an eccentric vibrating wheel; the spring bracket realizes lifting through a telescopic unit; and the grinding part consists of the following components in percentage by weight: 10-15% of Cr, 2-4% of Ni, 2-3% of Mn, 1-4% of Al, 4-6% of Ti, 2-4% of Cu, 1-2.5% of yttrium, 1-2% of lanthanum, 1-2% of erbium and the balance Fe. The integrated type polygonal sludge residue soil treatment device has the advantages of being more wear-resisting, longer in service life and good in grinding effect.