No you cannot die from dandruff.
Dandruff is a bad annoying thing for most people especially if the dandruff is really severe but dandruff is not a condition that causes death.
Dandruff is harmless and no harm to your health will come of having dandruff.
Dandruff is very annoying to deal with but you're not gonna die from it.
Washing your hair often with some dandruff shampoo will help keep the dandruff out of your hair so you don't have to deal with too much dandruff falling out at the worst times.
A lot of people deal with dandruff daily and yearly and no death occurs because of it because death cannot occur from dandruff.