Natural mineral water multi-layer sampling device and sampling method thereof

The invention relates to the technical field of water quality detection, in particular to a natural mineral water multilayer sampling device and a sampling method thereof. Comprising a sample collection module, the sample collection module comprises a plurality of sampling units distributed at equal intervals in the vertical direction, and a lifting unit is arranged between every two adjacent sampling units; the sampling unit comprises a sampling box; a sample storage bottle is movably mounted in the sampling box, an intermediate ring is sleeved outside the sample storage bottle, and a micro pump is communicated between the intermediate ring and the sample storage bottle; a plurality of groups of second water inlet pipes are distributed on the outer wall of the intermediate ring in an annular array, and the other ends of the second water inlet pipes extend out of the sampling box and are communicated with sampling pipes. According to the invention, the sampling depth can be rapidly adjusted under the conditio