Compound dust collector

The invention relates to a compound dust collector. The compound dust collector is characterized in that a support is fixedly welded on a shell, an inlet pipeline is arranged at the left side of the shell, an inlet pressure measurement hole is formed in the inlet pipeline, an inlet smoke box is connected with the inlet pipeline, an inlet guiding plate is arranged in the inlet smoke box, an electrostatic dust collection region is arranged at the left side of the inside of the shell, a testing fracture surface A and a testing fracture surface B are distributed, a cloth bag dust collection region is arranged at the right side of the inside of the shell, a testing fracture surface C and a testing fracture surface F are distributed, a gas purifying chamber is connected with the cloth bag dust collection region, an outlet pipeline is connected with the gas purifying chamber, an outlet pressure measurement hole is formed in the outlet pipeline, an ash bucket is arranged at the lower end of the shell, and an ash bucket baffle plate is arranged in the ash bucket. The compound dust collector has a simple structure and can be realized easily, the dust collection efficiency is improved, meanwhile, the dust collection pressure of the cloth bag close to the upper part of an air current distributing plate is reduced and the service life of the cloth bag is prolonged.