FIELD: mining, internal dump beneficiation of tungsten-bearing and lead-bearing ores. SUBSTANCE: first drain layer is formed, then the layer being beneficiated of substandard lead-bearing ores that are geochemical barrier for lead, and then the layer being beneficiated of tungsten-bearing ores that are geochemical barrier for tungsten ores, and then the layer of rock containing tungsten, lead. As leaching solutions are supplied, metals are dissolved in the layer being leached followed by their migration and tungsten and lead precipitation. Cleaned up solutions are removed through the drain layer. EFFECT: beneficiation of substandard ores. 3 cl, 1 dwg
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