After seeing this, I'm more convinced its a Thermobaric Bomb. Trump dropped one on ISIS positions in Afghanistan in 2017. Note the similarities between what appear to be multiple explosions - the first, not particularly big; the 2nd far more massive and destructive.
The "two explosions" from Wiki: A fuel–air explosive (FAE) device consists of a container of fuel and two separate explosive charges. After the munition is dropped or fired, the first explosive charge bursts open the container at a predetermined height and disperses the fuel (and possibly ionizes it, depending on whether a fused quartz dispersal charge container was employed) in a cloud that mixes with atmospheric oxygen (the size of the cloud varies with the size of the munition). The cloud of fuel flows around objects and into structures. The second charge then detonates the cloud and creates a massive blast wave. The blast wave can destroy reinforced buildings, equipment and kill or injure people.