Columnar-box type integrated sampler suitable for deep-sea sediment sampling operation

The invention provides a columnar-box type integrated sampler suitable for deep-sea sediment sampling operation. The columnar-box type integrated sampler comprises a scraper knife connecting rod system, a box type sampling system, a columnar sampling system and an in-situ hydrological parameter acquisition system, wherein the scraper knife connecting rod system comprises a lifting fence connected with the driving mechanism and a release lock catch fixed on the bracket, and is connected with a scraper knife connected with the bottom end of the sampler through a connecting rod; the box type sampling system is provided with ballast lead blocks, the top is provided with a sealed box cover, the bottom is provided with a sampling box body, the outer side is provided with a fixing plate, and the columnar sampling system is connected to the fixing plate; the columnar sampling system main body is a sampling tube, the top of the sampling tube is provided with a one-way valve, the bottom is provided with a tool bit, and