Smoking article comprising an isolated combustible heat source

A smoking article, comprising:

• a combustible heat source having a front end and a rear end;
• an aerosol-forming substrate downstream of the rear end of the combustible heat source;
• an outer wrapper circumscribing the aerosol-forming substrate and at least a rear portion of the combustible heat source;
• one or more airflow pathways along which air may be drawn through the smoking article for inhalation;
• one or more third air inlets downstream of the aerosol-forming substrate for drawing air into the one or more airflow pathways;
• and
• an airflow directing element downstream of the aerosol-forming substrate,
• wherein the one or more third air inlets are provided between a downstream end of the aerosol-forming substrate and a downstream end of the airflow directing element,
• wherein the one or more airflow pathways comprise an airflow pathway extending between the one or more third air inlets and a mouth end of the smoking article,
• wherein the combustible heat source is isolated from the one or more airflow pathways such that air drawn through the smoking article along the one or more airflow pathways does not directly contact the combustible heat source, and
• wherein the airflow directing element overlaps with the one or more third air inlets.