Sampling device for ocean engineering investigation

The utility model discloses a sampling device for ocean engineering investigation, which belongs to the technical field of ocean investigation sampling and comprises a sampling barrel. The bottom of the sampling barrel is detachably connected with a base; a shoveling bucket is arranged at the top of the sampling barrel, and a fixed cover is detachably connected to the shoveling bucket; the filtering device comprises a connecting structure arranged on the sampling barrel, a fixing frame is arranged on the connecting structure, a pushing structure is arranged on the fixing frame, a filtering net matched with the inner diameter of the sampling barrel is arranged on the pushing structure, the filtering net is pushed into the sampling barrel through the pushing structure, then the sampling barrel is turned over, and the sampling barrel is separated from the sampling barrel. The filter screen is fixed through the screw rod, and the sampling barrel can be shaken back and forth in cooperation with manual work, so tha