Dual-pulse water-contained flow combination instrument

The utility model relates to a dual-pulse water-contained flow combination instrument. The technical problem to be solved is to provide the dual-pulse water-contained flow combination instrument with the characteristics of simple structure and high flow measuring accuracy. The technical scheme which solves the problem is as follows: the dual-pulse water-contained flow combination instrument is provided with a protection pipe, a middle joint and a lower joint are respectively arranged at the two ends of the protection pipe, and a water-contained sensor, a magneto-dependent sensor and an impeller assembly which is corresponding to the magneto-dependent sensor are arranged in the protection pipe by the middle joint. The dual-pulse water-contained flow combination instrument is characterized in that two magnetic rods are arranged on an impeller shaft of the impeller assembly, and two magnetic-sensing elements which are matched with the magnetic rods are arranged at the corresponding positions at the inner part of