Soil matrix sampling device for highway engineering detection

The invention relates to the field of sampling devices, in particular to a soil matrix sampling device for highway engineering detection, which comprises a shell, a sampling assembly and a driving assembly, the outer end of a push rod pushes a first sampling plate to rotate through a first hinge rod, and the first sampling plate opens an opening of a sampling cavity; the limiting assembly limits the relative sliding of the pushing rod and the sampling block, the sampling block and the pushing rod synchronously slide outwards, the sampling block is pushed to be inserted into soil, and when the pushing rod is pulled, the relative sliding of the pushing rod and the sampling block enables the first sampling plate to plug the opening of the sampling cavity; the multiple groups of sampling blocks are uniformly distributed on the axis of the shell, so that soil samples with different depths can be taken out, and further, in the soil sampling process, the first sampling plate blocks the sampling cavity to reduce poll