Soil sampler for ecological environment monitoring

The utility model discloses a soil sampler for ecological environment monitoring. The soil sampler comprises a sampling barrel, a fixed barrel and an extension barrel, according to the soil sampler for ecological environment monitoring, a fixed barrel is arranged above a sampling barrel, an extension barrel is arranged between the fixed barrel and the sampling barrel, first internal thread grooves are formed in the bottom ends of the extension barrel and the fixed barrel, first external thread heads are arranged at the top ends of the extension barrel and the sampling barrel, and the first external thread heads are matched with the first internal thread grooves; grab handles are symmetrically and fixedly connected to the side wall of the upper portion of the fixed barrel, a blade part is arranged at the bottom of the sampling barrel, the sampling barrel, the fixed barrel and the extension barrel are connected through cooperation of a first internal thread groove and a first external thread head, the extension