The present invention relates to a soil purification apparatus. A soil purification apparatus according to an embodiment of the present invention includes: a soil mixture separation chamber through which a soil mixture is supplied; And a bubble generator disposed in the soil mixture storage chamber to generate bubbles. Some of the particles of the soil mixture introduced into the soil mixture separation chamber are precipitated by gravity and are discharged to the outside through the lower outlet of the soil mixture separation chamber. The fine soil of the soil mixture introduced into the soil mixture separation chamber is suspended by bubbles generated by the bubble generator, overflows from the upper opening of the soil mixture separation chamber, and is discharged to the outside.
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