Heavy metal detection digestion tube

The utility model relates to the technical field of digestion tubes, and discloses a heavy metal detection digestion tube which comprises a heavy metal detection digestion tube main body, an exhaust mechanism, an anti-overflow mechanism and a heating mechanism, the exhaust mechanism is located at the top end of the heavy metal detection digestion tube main body, the anti-overflow mechanism is located in the heavy metal detection digestion tube main body, and the heating mechanism is located in the heavy metal detection digestion tube main body. The heating mechanism is located at the outer end of the heavy metal detection digestion pipe main body, and the anti-overflow mechanism comprises an exhaust bracket frame, a limiting block and exhaust anti-overflow cloth. The heavy metal detection digestion tube is provided with the anti-overflow mechanism, when the reaction in the heavy metal detection digestion tube main body is strong, the exhaust bracket frame and the exhaust anti-overflow cloth are jacked up, the