Set air fryer to 180ºC and heat for 5 minutes.
In a bowl, mix together almond flour, oats, coconut, sugar, cinnamon and baking powder until well combined.
In a separate bowl, mix together melted butter, vanilla, maple syrup and eggs.
Add the wet ingredients to the dry ingredients and mix until combined.
With a wooden spoon, mix in the chocolate chips and walnuts.
Place a paper liner in the air fryer or spray the air fryer with a non- stick spray. Scoop the mixture into 1 tablespoon sized balls, flatten slightly and place into air fryer basket 2cm apart.
Air fry for 6 minutes, then allow to cool for 3 minutes before removing them to cool completely on a wire rack.