The invention discloses an inserted type in-situ soil
leachate collecting device, belongs to the technical field of agricultural soil measurement study and aims to solve the problem of
preferential flow of the traditional alfisol column. The inserted type in-situ soil
leachate collecting device comprises a filtrate collecting unit, a negative-pressure sampling unit and a cleaning unit, wherein the filtrate collecting unit comprises a filter layer and a filtrate collector below the filter layer, the filtrate collector comprises an outer frame and a filtrate collecting cavity formed in the outer frame, and the filtrate collecting cavity is communicated with the negative-pressure sampling unit and the cleaning unit; the cleaning unit comprises a negative-pressure pump and a flushing
pipe, and the negative-pressure pump is communicated with the filtrate collecting cavity through the flushing
pipe; the negative-pressure sampling unit comprises a negative-pressure sampling pump, a water outlet
pipe and a sampling
bottle, one end of the water outlet pipe is communicated with the filtrate collecting cavity, and the other end of the water outlet pipe is communicated with the negative-pressure sampling pump and the sampling
bottle. The device is convenient to
mount and simple to operate, and the influence of
preferential flow of the traditional alfisol column can be avoided; by means of the cleaning unit, blockage of the water outlet pipe during sampling can be prevented, and the service life of the device is prolonged.