Diaphragm pump waterway structure and water outlet structure capable of exhausting air quickly

The utility model provides a diaphragm pump waterway structure, which relates to the technical field of diaphragm pumps and comprises a shell, a water inlet, a water outlet and an inner cover, the water inlet and the water outlet are arranged on the shell, the inner cover is arranged in the shell, and a discharge cavity and a plurality of suction cavities are arranged in the inner cover. The water inlet and the suction cavity form a first water path and a second water path which are different in flow direction, and the water outlet is communicated with the discharge cavity; one of the first water path and the second water path is internally provided with a blocking part for blocking circulation of the water path, and the water path is a one-way water path and cannot be shunted, so that the defect that gas cannot be quickly discharged due to insufficient water inlet of at least one water path in the original shunting water path is overcome; therefore, the problems that an existing diaphragm pump product is lar