Well water sampling device for hydrological monitoring

The utility model discloses a well water sampling device for hydrological monitoring, which belongs to the technical field of hydrological monitoring and comprises a working box, a dismounting opening is formed in the right side surface of the working box, an installation box is arranged in the dismounting opening, a placing opening is formed in the upper surface of the installation box, and a filter screen is arranged in the placing opening. The device is provided with an auxiliary spring, a sliding rod can be pushed to move on the inner wall of a sliding hole through the elasticity of the auxiliary spring, a filter screen is conveniently fixed through cooperation of the sliding rod and a clamping groove, the situation that the filter screen loosens or falls off in the using process is avoided, the filter screen is easier to replace, and the practicability is high. The two sliding rods are directly pulled away from each other, so that the sliding rods can be separated from the clamping grooves, meanwhile, a