Multi-parameter in-situ water quality monitoring cylinder

The utility model relates to the technical field of water quality monitoring cylinders, and discloses a multi-parameter in-situ water quality monitoring cylinder which comprises a water sampling box and a water sampling pipe connected with the upper end of the water sampling box, the other end of the water sampling pipe is connected with a monitoring cylinder, the monitoring cylinder comprises a sealing shell and a water inlet formed in one side of the upper end of the sealing shell, and a sensor support is arranged in an inner cavity of the sealing shell. A sensor is arranged on the surface of the sensor support and used for detecting the water quality in the monitoring cylinder, a water level monitoring plate is arranged on one side of an inner cavity of the sealing shell, three sets of water level contacts are arranged on the surface of the water level monitoring plate, and the monitoring cylinder is provided with the sealing shell and can store water and well protect the sensor arranged on the surface of