Novel heavy metal wastewater treatment device

The utility model discloses a novel heavy metal wastewater treatment device which comprises a treatment box body, a mixing hopper is fixedly mounted at the top end in the treatment box body, a liquid guide pipe, a stirring mechanism and a locking assembly are fixedly mounted on the two sides of the bottom end of the mixing hopper, and the locking assembly comprises a supporting plate and a fixing plate. A guide cylinder is fixedly mounted on the surface of one end of the fixing plate, a spring is arranged in the guide cylinder, and one end of the spring is fixedly connected with the fixing plate; according to the wastewater treatment device, the filter assembly can be taken out from the treatment box body through the mounted locking assembly, and then the filter assembly can be cleaned, so that the condition that the filter screen is blocked due to long-time use is avoided, and the wastewater treatment effect of the device is improved; the sealing plate is arranged on the treatment box body, the tightness of