煤层自燃形成的烧变岩具有较强热剩磁根据深、浅烧变岩层磁异常及磁性干扰信号在频率成分上的差异，采用小波多分辨分析概念和Ｍａｌａｔ算法，实现了多煤层自燃叠加磁异常的去噪和分离处理，应用实例表明，该方法有效可行结合理论模型试算，研究了截断误差、磁异常采样密度和烧变岩层间距离等对小波分解结果的影响 According to the differences of magnetic anomalies between deep and shallow burned rock strata and the magnetic interference signals, the multi-resolution analysis concept and Malat algorithm are adopted to realize the self-igniting superposition of multiple coal beds Magnetic anomaly denoising and separation processing, application examples show that the method is effective and feasible  combined theoretical model test calculation, the study of the truncation error, magnetic anomaly sampling density and the distance between calcined rock layers on the wavelet decomposition results