River water quality detection sampling device

The invention discloses a river water quality detection sampling device, and relates to the technical field of water quality detection, the river water quality detection sampling device comprises a detection sampling device arranged on a ship body, and the detection sampling device is provided with a sampling pipe; the anti-blocking device is arranged at the bottom end of the sampling pipe, the anti-blocking device comprises a square cover detachably mounted at the bottom end of the sampling pipe, the square cover is communicated with the sampling pipe, an upper row of stop levers and a lower row of stop levers are arranged on the inner wall of the square cover, the stop levers are vertically arranged in a staggered manner, a water inlet is formed between the upper row of stop levers and the lower row of stop levers, and a water outlet is formed between the upper row of stop levers and the lower row of stop levers. A screw hole is formed in the center of the top wall of the square cover, and an external threa