We report two cases of parenchymal air-fluid level in emphysematous lungs. Plain chest radiograph showedpneumonic consolidation with an air-fluid level. HRCT in the supine position showed intrapulmonary fluidcollection with an air-fluid level, which moved to the dependent portion when the patient was in the proneposition. When pneumonia developed in severe emphysematous lungs, a movable parenchymal air-fluid level can bevisualized, though the presence of this on plain chest radiographs cannot be interpretated as hydropneumothorax.