In situ deposit pore water grading active sampler

The invention discloses an in situ deposit pore water grading active sampler, and belongs to the technical field of environment monitoring and environment ecology protection. The in situ deposit pore water grading active sampler is characterized in that a same steel plate is vertically provided with a plurality of sampling units, the sampling units have a same height, and the sampling units are spatially distant to realize no water exchange among the sampling units. The sampler belongs to an active sampling device, and a vacuum pump is used under controllable pressure intensity conditions, so the sampling time is shortened. The sampler can be used to collect pore water with different depths in a same position in a high water level area, and the heights of small pores in steel tubes of the sampling units are set by a collecting person according to research content in order to collect the pore water with different depths. The apparatus has the advantages of convenient carrying, strong operability, low cost, and convenience for being practically promoted and applied.