Water sampling device and portable sampling device

The water sample collecting device comprises a water suction pump, a telescopic rod and a water suction pipe, the telescopic rod is arranged on the water suction pump, a hanging ring is arranged at the telescopic end of the telescopic rod, a water inlet and a water outlet are formed in the water suction pump, one end of the water suction pipe is communicated with the water inlet, and the other end of the water suction pipe is communicated with the water outlet. The other end of the water pumping pipe penetrates through the hanging ring and is connected with a hanging hammer; a buoy is arranged on the water pumping pipe; the portable collection device comprises a box body and a box cover, one end of the box cover is hinged to the box body, the other end of the box cover is buckled to the box body, and a telescopic rod containing groove, a water pumping pipe and buoy containing groove, a water quality detection pen containing groove, a reagent bottle containing groove, a water pump containing groove, a hanging