The Texas Lutheran kicker took a second swipe at the ball after it was blocked and put it through the uprights for 3 points. The initial kick was blocked, the ball bounces and he makes a soccer move to kick the bouncing ball. 

https://www.si.com/college-football/2017/09/17/texas-lutheran-kicker-makes-blocked-field-goal

Several sites are arguing it should not have counted because it is a kicked ball which is illegal; but it is legal simply because it is a kicked ball. He can rekick the ball until it is dead or recovered by a player. If a player had recovered it, coughed it up before he was down and he rekicked it it would not have been legal but until then it is still considered a kicked ball per NCAA rulebook:

Any free kick or scrimmage kick continues to be a kick until it is caught or recovered by a player or becomes dead.

https://rulebook.github.io/en/rules/2/sections/16/

Either way a great highlight reel and good headwork by the kicker.