Beneficiation method of associated gold, silver, lead and zinc ore

The invention relates to a beneficiation method for associated gold, silver, lead and zinc ore, which comprises the following steps: carrying out first-stage rough grinding, taking a collecting agent B as a collecting agent, carrying out flash flotation to produce high-grade gold, silver and lead-containing rough concentrate, combining the collecting agent B and a collecting agent C in flash flotation tailings, and strengthening the floating of lead with lower floating speed in lead roughing tailings and lead generated with zinc and sulfur; according to the method, the lead, gold and silver minerals with different disseminated particle sizes are subjected to segmented regrinding and recycling. The method can effectively improve the grade and recovery rate of lead and associated gold and silver in the lead concentrate, the flotation reagent dosage in the process is greatly reduced, no acid-base regulator is added, the environmental protection requirement is met, meanwhile, the lead is prevented from being over