Activated charcoal pickler

The utility model relates to an activated charcoal pickler, which comprises a pickling tank, and an acid-proof pump, and further comprises a circulating water tank, a spray head, and an acid mist filter, wherein the acid mist filter is arranged on one side of the pickling tank, the acid mist filter and the neck part of the pickling tank are communicated with each other by pipelines, and a row of charcoal ports are formed at the bottom of the pickling tank; the circulating water tank communicated with the acid-proof pump is arranged on the other side of the pickling tank, a sampling hole is arranged at the bottom of the circulating water tank, one side at the bottom of the circulating water tank is communicated with the bottom of the pickling tank by a water drainage pipe, one side at the neck part of the circulating water tank is communicated with the pickling tank with an exhaust pipe, and one acidic solution filling tube and the other acidic solution filling tube are arranged at the neck part of the circulating water tank; and charcoal feeding port and an exhaust port are arranged above the neck part of the pickling tank, the spray head connected with a spraying pressure regulating hole is arranged below the neck part of the pickling tank, and the jet head and the acid-proof pump are communicated with pipelines. The pickler has the advantages of simple structure, simple and convenient operation, low degree of charcoal abrasion, good pickling effect, environment friendliness, and the like, and is especially suitable for being used in activated charcoal adsorption gold extraction industries.